Lease Expiration Date Lease expiration date Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock Option Granted For period Gross Profit Surgical Glaucoma Gross profit Redeemable preferred stock warrants liabilities non current. Redeemable Preferred Stock Warrants Liabilities Non Current Redeemable preferred stock warrants liabilities Lease commencement date Lease Commencement Date Lease Commencement Date Shares Authorized Temporary Equity, Shares Authorized Redeemable convertible preferred stock, shares authorized Percentage of final payment fee Line of Credit Facility, Commitment Fee Percentage Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount Defined contribution plan, maximum annual contributions per employee amount Operating Expenses [Abstract] Operating expenses: Loss from operations Operating Income (Loss) Loss from operations Debt Instrument, Covenant Description Debt Instrument, Covenant Description Exercise of Options under Stock Plan Exercise of Options Under Stock Plan [Member] Exercise of options under stock plan. Entity Emerging Growth Company Entity Emerging Growth Company Shares available for future purchase under ESPP Shares Available For Future Purchase Under E S P P [Member] Shares available for future purchase under ESPP. Collected withholdings under plan Proceeds from Stock Plans Increase (Decrease) in Prepaid Expense and Other Assets, Total Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Revolver 2019 Revolving credit facility 2019. Revolving Credit Facility Two Thousand Nineteen [Member] Number of Reportable Segments Number of Reportable Segments Shares Available for Grant Common stock available for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Shares Available for Grant Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Noncash or Part Noncash Acquisition, Fixed Assets Acquired Acquisition of property and equipment included in accounts payable and accrued liabilities Two thousand Twenty warrant. 2020 Warrants Two Thousand Twenty Warrants [Member] 2020 Warrants [Member] Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common Stock, Value, Issued Common stock par value of $0.001 per share; 200,000,000 shares authorized as of March 31, 2022 and December 31, 2021, respectively; 47,590,348 and 47,292,022 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively Entity Address, State or Province Entity Address, State or Province Liabilities Total liabilities Two Thousand Eleven Plan And Two Thousand Twenty One Plan Two Thousand Eleven Plan And Two Thousand Twenty One Plan [Member] 2011 Plan and 2021 Plan Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate 2021 Employee Stock Purchase Plan Two thousand twenty one employee stock purchase plan. Two Thousand Twenty One Employee Stock Purchase Plan [ Member] Other Noncash Investing and Financing Items [Abstract] Noncash investing and financing: ISO ISO I S O [Member] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Aggregate Future Minimum Lease Payments Class of Stock [Domain] Class of Stock Reserved Common Stock for Future Issuances Schedule of Stock by Class [Table Text Block] Senior Secured 2020 Term Loan Senior secured 2020 term loan. Senior Secured Twenty Twenty Term Loan [Member] Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted-average shares of common stock outstanding, basic and diluted Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Redeemable Convertible Preferred Stock [Member] Redeemable Convertible Preferred Stock Weighted average contractual term, vested and exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Accounts Receivable, after Allowance for Credit Loss, Current, Total Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net Gross profit Gross Profit [Abstract] Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants Conversion of preferred stock warrants to common stock warrants upon the closing of the IPO Fair Value, Recurring and Nonrecurring [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies City Area Code City Area Code Issuance of Options under Plan Issuance of Options Under Stock Plan [Member] Issuance of options under stock plan. Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of Weighted Average Valuation Assumptions Used to Estimate Fair Value of Employee Stock Options Temporary Equity, Par or Stated Value Per Share Redeemable convertible preferred stock, par value US Treasury Securities [Member] US Treasury Securities [Member] Percentage of voting power required to own Percentage of Voting Power Required to Own Percentage of voting power required to own Revenues [Abstract] Revenue Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Forfeited/cancelled Commitments and Contingencies Commitments and contingencies (Note 6) Amortized Cost Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Stock Issued During Period, Shares, New Issues Issuance of common stock in connection with initial public offering, net of issuance costs, shares Debt instrument, variable rate Debt Instrument, Basis Spread on Variable Rate underwritten public offering in the aggregate gross proceeds received Proceeds from Issuance of Convertible Preferred Stock Proceeds from the issuance of redeemable convertible preferred stock Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Series F Preferred Stock [Member] Series F Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Denominator: Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Restricted stock units outstanding Restricted Stock Units Outstanding [Member] Restricted stock units outstanding. Tranche one loans. Tranche One Loans [Member] Tranche One Loans Amortization of Debt Issuance Costs and Discounts, Total Amortization of Debt Issuance Costs and Discounts Accretion of debt discount and amortization of debt issuance costs Stock Issued During Period, Value, Conversion of Convertible Securities Common Stock issued on conversion of convertible preferred stock Conversion of preferred stock to common stock upon initial public offering Income Statement [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Series A Redeemable Convertible Preferred Stock Series A Series A Redeemable Convertible Preferred Stock [Member] Series A redeemable convertible preferred stock. Unrealized Losses Unrealized Losses Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Debt Disclosure [Text Block] Debt Temporary Equity [Abstract] Redeemable convertible preferred stock: Employee-related Liabilities, Current, Total Employee-related Liabilities, Current Accrued compensation Financial Liabilities Fair Value Disclosure, Total Financial Liabilities Fair Value Disclosure Total liabilities measured at fair value Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Common Stock, Shares, Issued, Total Common Stock, Shares, Issued Common stock, shares issued Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Proceeds from Paycheck Protection Program loan Proceeds from Paycheck Protection Program loan Proceeds From Paycheck Protection Program Loan Proceeds from Paycheck Protection Program loan Security Exchange Name Security Exchange Name Statistical Measurement [Domain] Statistical Measurement Long-Term Debt, Maturity, Year Three 2025 2025 Furniture and Fixtures [Member] Furniture and Fixtures Line of credit facility, unused capacity, commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Other Liabilities, Noncurrent Other noncurrent liabilities Total other noncurrent liabilities Subsequent Event Type [Domain] Subsequent Event Type Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt instrument covenant minimum revenue Debt instrument covenant minimum revenue. Debt Instrument Covenant Minimum Revenue Debt Disclosure [Abstract] Document Period End Date Document Period End Date Replacement cost of Device Replacement cost of device Income Statement Location [Axis] Income Statement Location Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Accrued expenses Accrued Liabilities, Current, Total Accrued Liabilities, Current Line of Credit Facility, Lender [Domain] Warrant term Warrants and Rights Outstanding, Term Term (in years) Warrant [Member] Warrants Common Stock, Shares Authorized Common stock, shares authorized Use of Estimates, Policy [Policy Text Block] Use of Estimates Operating Lease, Liability, Current Current portion of lease liabilities Less: current portion of operating lease liability Accrued amount related accretion on maturity payments Accrued accretion on maturity payments. Accrued Accretion On Maturity Payments Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information Class of Stock [Axis] Class of Stock Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Two thousand and twenty one plan. Two Thousand And Twenty One Plan [Member] 2021 Plan Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Redeemable convertible preferred stock Line of credit facility commitment fee amount Line of Credit Facility, Commitment Fee Amount Long-Term Debt, Maturity, Year Two 2024 2024 Schedule of Long-term Debt Instruments [Table] Debt Instrument [Table] Interest expense, debt Interest Expense, Debt, Total Interest Expense, Debt Two thousand and Eleven plan. 2011 Plan Two Thousand And Eleven Plan [Member] Vesting [Axis] Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid for interest Postemployment Benefits [Abstract] Entity Address, Address Line Two Entity Address, Address Line Two Current Fiscal Year End Date Current Fiscal Year End Date Organization consolidation and presentation of financial statements disclosure. Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net change in cash and cash equivalents Term Loan Term Loan [Member] Term loan. Segment Reporting Disclosure [Text Block] Segment Information Debt instrument, frequency of periodic payment Debt Instrument, Frequency of Periodic Payment Assets [Abstract] Assets Accrued and other current liabilities. Accrued And Other Current Liabilities [Table Text Block] Summary of Accrued and Other Current Liabilities Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of redeemable convertible preferred stock Conversion of preferred stock to common stock upon initial public offering, Shares Stock split Stock split, description Stockholders' Equity Note, Stock Split Lessee, Operating Lease, Liability, to be Paid, Year One 2023 Accounts Payable, Current Accounts payable Accounts Payable, Current, Total Debt Instrument, Name [Domain] Debt Instrument, Name Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Common Stock, Par or Stated Value Per Share Common stock, par value Ending Balance, shares Beginning Balance, shares Shares, Outstanding Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock Additional paid-in-capital Tranche three loans. Tranche Three Loans [Member] Tranche Three Loans Loss before income tax Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Loss before income taxes Document Type Document Type Vesting [Domain] Preferred Stock, Value, Issued, Total Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued Preferred stock par value of $0.001 per share; 10,000,000 shares authorized; no shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively Operating Lease, Liability, Noncurrent Noncurrent portion of lease liabilities Operating lease liabilities - noncurrent Options Granted to New Hires Options granted to new hires. Options Granted To New Hires [Member] Total accrued and other current liabilities Accrued and other current liabilities Accounts Payable and Other Accrued Liabilities, Current Assets, Current Total current assets Accounts Receivable, Credit Loss Expense (Reversal) Provision for doubtful accounts receivable Other non current liabilities. Other Non Current Liabilities Other noncurrent liabilities Share-based Payment Arrangement, Option [Member] Options to Purchase Common Stock Issuance of common stock under employee stock purchase plan Long-term Debt, Type [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Term Income Tax Expense (Benefit), Total Income Tax Expense (Benefit) Provision for income taxes Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental noncash disclosure redeemable convertible preferred stock issuance cost value. Redeemable Convertible Preferred Stock Issuance Cost Value Series F redeemable convertible preferred stock issuance cost Payments for Repurchase of Redeemable Convertible Preferred Stock Series F issuance costs Earnings Per Share, Basic and Diluted, Total Earnings Per Share, Basic and Diluted Net loss per share attributable to common stockholders, basic and diluted Area of Land Operating lease office space Antidilutive Securities [Axis] Antidilutive Securities Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding Common stock, shares outstanding Class of Warrant or Right [Domain] Class of Warrant or Right Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information Plan Name [Axis] Plan Name Debt instrument, term Debt Instrument, Term Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated depreciation Shares Available for Grant, Options forfeited/cancelled Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Forfeited/cancelled Line of credit facility, current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Common Stock issued on conversion of convertible preferred stock. Common Stock Issued On Conversion Of Convertible Preferred Stock Common Stock issued on conversion of convertible preferred stock Cash and Cash Equivalents [Domain] Operating Expenses Total operating expenses Operating expense Operating expense IPO IPO [Member] Inventory, Net Inventory, net Inventory, Net, Total Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted-Average Exercise Price Balances as of June 30, 2021 Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities Exercise of common stock warrants shares. Exercise of Common Stock Warrants, Shares Exercise of common stock warrants, shares Class of warrant exercise price Class of Warrant or Right, Exercise Price of Warrants or Rights Earnings Per Share [Abstract] Conversion and reclassification of preferred stock warrants to common stock warrants upon initial public offering. Conversion and Reclassification of Preferred Stock Warrants to Common Stock Warrants Upon Initial Public Offering Conversion of reclassification of preferred stock warrants to common stock warrants upon initial public offering Lessee, Operating Lease, Liability, to be Paid, Year Two 2024 Net loss Net loss and comprehensive loss Net loss Net loss attributable to common stockholders Revolving 2020 Revolving credit facility 2020. Revolving Credit Facility Two Thousand Twenty [Member] Operating Lease, Weighted Average Discount Rate, Percent Lease, borrowing rate Research and Development Expense [Member] Research and Development Expenses Document Fiscal Period Focus Document Fiscal Period Focus Issuance of Series E convertible preferred stock Temporary Equity, Stock Issued During Period, Value, New Issues Stock issuance costs Accounting for payroll protection program. Accounting For Payroll Protection Program [Policy Text Block] Accounting for Payroll Protection Program Accounting Policies [Abstract] Entity Address, Address Line One Entity Address, Address Line One Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Aggregate intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of Shares Number of Shares Debt instrument percentage of prepayment premium year one. Percentage of prepayment premium year one Debt Instrument Percentage of Prepayment Premium Year One Liabilities, Current Total current liabilities Earnings Per Share Reconciliation [Abstract] Numerator: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Entity Address, Postal Zip Code Entity Address, Postal Zip Code Fair value of outstanding debt Debt Instrument, Fair Value Disclosure, Total Debt Instrument, Fair Value Disclosure Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Average Intrinsic Value Lessee, Operating Lease, Liability, to be Paid Total future minimum lease payments Subsequent Event [Table] Temporary Equity, Carrying Amount, Attributable to Parent Ending Balance Beginning Balance Carrying Value Convertible preferred stock par value of $0.001 per share; 10,000,000 shares authorized; no shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively Preferred stock par value of $0.001 per share; 10,000,000 shares authorized; no shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively Proceeds from Issuance Initial Public Offering Proceeds, net of underwriting discounts and commissions Proceeds from issuance of common stock upon initial public offering, net of underwriting discounts and commissions Cost of Goods and Services Sold [Abstract] Cost of goods sold Shares Available for Grant, Additional shares reserved Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Increase (Decrease) in Other Noncurrent Liabilities Other noncurrent liabilities Equity Components [Axis] Equity Components Lease, Cost [Table Text Block] Schedule of Operating Lease Expense Recognized and Supplemental Cash Flow Assets, Current [Abstract] Current assets: Entity Registrant Name Entity Registrant Name Series F redeemable convertible preferred stock. Series F Redeemable Convertible Preferred Stock Series F Series F Redeemable Convertible Preferred Stock [Member] Summary of Held-to-maturity debt securities at amortized cost in the financial statements. Fair Value, by Balance Sheet Grouping [Table Text Block] Debt instrument interest payment extended term Debt Instrument Interest Payment Extended Term Debt instrument interest payment extended term. Percentage of prepayment premium year three Debt Instrument Percentage of Prepayment Premium Year Three Debt instrument percentage of prepayment premium year three. Gain (Loss) on Disposition of Property Plant Equipment, Total Gain (Loss) on Disposition of Property Plant Equipment Loss on disposal of property and equipment Unrealized Gains Unrealized Gains Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant, Granted in Period Share-based compensation arrangement by share-based payment award, number of shares available for grant, granted in period. Shares Available for Grant, Granted Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Entity Interactive Data Current Entity Interactive Data Current Entity Address, City or Town Entity Address, City or Town Long-Term Debt, Maturity, Remainder of Fiscal Year 2022 (remainder) 2022 (remainder) Debt instrument interest payment term Debt Instrument Interest Payment Term Debt instrument interest payment term. Supplemental Balance Sheet Disclosures [Text Block] Balance Sheet Components Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected term (in years) Trading Symbol Trading Symbol Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: imputed interest Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Share-based Payment Arrangement, Restricted Stock Unit, Activity Series F Redeemable Convertible Preferred Stock and Warrants Series F Redeemable Convertible Preferred Stock and Warrants Series F Redeemable Convertible Preferred Stock and Warrants [Member] Series F redeemable convertible preferred stock and warrants. Financial Liabilities Fair Value Disclosure [Abstract] Liabilities: Local Phone Number Local Phone Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Number of Shares, Vested and expected to vest as of March 31, 2022 Total stockholders' equity Stockholders' Equity Attributable to Parent Ending Balance Beginning Balance Payments of Debt Issuance Costs Debt issuance costs - third party Subsequent Event Type [Axis] Subsequent Event Type Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Operating Lease, Payments Cash paid for operating leases Preferred Stock, Shares Issued, Total Preferred Stock, Shares Issued Preferred Stock, Shares Issued Series E Preferred Stock [Member] Series E Statistical Measurement [Axis] Statistical Measurement Entity Small Business Entity Small Business Tools, Dies and Molds [Member] Tools and Equipment Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Organization, Consolidation and Presentation of Financial Statements [Abstract] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV Underwriters' Option Over-Allotment Option [Member] Credit Facility Credit Facility [Axis] Total accrued and other current liabilities Total accrued and other current liabilities Long-term debt Long-term Debt, Excluding Current Maturities Variable Rate [Axis] Variable Rate Variable Rate [Domain] Variable Rate Tranche two loans. Tranche Two Loans [Member] Tranche Two Loans Segment Reporting [Abstract] Change in fair value of redeemable convertible preferred stock warrant Fair Value Adjustment of Warrants Share of common stock issued upon warrant exercised Conversion of Stock, Shares Issued Loan received Proceeds from Short-term Debt, Total Proceeds from Short-term Debt Defined Contribution Plan [Text Block] Defined Contribution Plan Warrant outstanding Class of Warrant or Right, Outstanding Common stock warrants issued on conversion of preferred stock warrants and the reclassification of the warrant liability. Common Stock Warrants Issued on Conversion of Preferred Stock Warrants and the Reclassification of the Warrant Liability Common stock warrants issued on conversion of preferred stock warrants and the reclassification of the warrant liability Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Granted Sale of Stock [Domain] Sale of Stock Shares Issued Temporary Equity, Shares Issued Redeemable convertible preferred stock, shares issued Equity [Abstract] Conversion and Reclassification of Preferred Stock Warrants to Common Stock Warrants Upon Initial Public Offering, Shares Conversion and Reclassification of Preferred Stock Warrants to Common Stock Warrants Upon Initial Public Offering, Shares Conversion and reclassification of preferred stock warrants to common stock warrants upon initial public offering, shares Plan Name [Domain] Plan Name Lender Name [Axis] Long-Term Debt, Maturity, Year One 2023 2023 Depreciation, Total Depreciation Depreciation Lessee, Operating Lease, Term of Contract Operating lease term Stock Issued During Period, Value, New Issues Issuance of common stock in connection with initial public offering, net of issuance costs Adjustments to Additional Paid in Capital, Other Deferred initial public offering cost recorded to additional paid in capital Summary of Fair Value Measurement of Liabilities of Measured on Recurring Basis Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Line of credit facility collateral fees Line of credit facility collateral fees. Line Of Credit Facility Collateral Fees Percentage Interest expense Interest Expense, Total Interest Expense Debt Instrument, Unamortized Discount, Total Debt Instrument, Unamortized Discount Less: debt discount related to warrant liability and issuance costs Share-based Payment Arrangement, Noncash Expense, Total Share-based Payment Arrangement, Noncash Expense Stock-based compensation expense Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Summary of Stock Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset Principal payments due Long-term Debt, Gross Segment Reporting Information [Line Items] Noncash Operating Lease Cost Noncash Operating Lease Cost Noncash operating lease expense Deferred offering costs Deferred Offering Costs Total deferred costs Deferred initial public offering cost recorded to additional paid in capital Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Fair Value Measurements Long-term Debt, Current Maturities, Total Long-term Debt, Current Maturities Less: Current portion Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Commitments and Contingencies Disclosure [Abstract] Right-of-Use Asset Obtained in Exchange for Operating Lease Liability New operating lease assets obtained in exchange for operating lease liabilities Investment income Investment Income, Net Investment Income, Net, Total Debt issuance costs Debt Issuance Costs, Net, Total Debt Issuance Costs, Net Assets Total assets Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 Employee Benefits and Share-based Compensation Stock based compensation Accounts Receivable, Allowance for Credit Loss, Beginning Balance Accounts Receivable, Allowance for Credit Loss, Ending Balance Accounts Receivable, Allowance for Credit Loss Deferred costs, current Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercise of options under stock plan Number of Shares, Exercised/released Issuance of common stock upon exercise of stock options, shares Increase (Decrease) in Employee Related Liabilities, Total Increase (Decrease) in Employee Related Liabilities Accrued compensation Share based compensation arrangement by share based payment exercise price percentage granted. Share Based Compensation Arrangement By Share Based Payment Exercise Price Percentage Granted Exercise price percentage of an ISO granted Statement [Line Items] Statement [Line Items] Total liabilities, redeemable convertible preferred stock and stockholders' equity Liabilities and Equity Document Quarterly Report Document Quarterly Report Class of Warrant or Right [Axis] Class of Warrant or Right Series C redeemable convertible preferred stock. Series C Redeemable Convertible Preferred Stock Series C Series C Redeemable Convertible Preferred Stock [Member] Statement of Cash Flows [Abstract] Additional Paid-In Capital Additional Paid-in Capital [Member] Title of 12(b) Security Title of 12(b) Security Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after third fiscal year following current fiscal year. Long-Term Debt, Maturity, after Year Three Thereafter Thereafter Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 Debt Instrument [Line Items] Debt Instrument [Line Items] Mid Cap Financial Services Mid Cap Financial Services. Mid Cap Financial Services [Member] Award Type [Domain] Award Type Vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Stock option grant period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Organization consolidation and presentation of financial statements disclosure. Organization Consolidation And Presentation Of Financial Statements Disclosure [Table] Organization Consolidation And Presentation Of Financial Statements Disclosure [Table] Property, Plant and Equipment [Table Text Block] Summary of Property and Equipment, Net Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant, Forfeited in Period Share-based compensation arrangement by share-based payment award, number of shares available for grant, forfeited in period. Shares Available for Grant, Forfeited/cancelled Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture, Total Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Stock-based compensation expense Share of common stock purchased Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested and exercisable as of June 30, 2021 Weighted-Average Exercise Price, Vested and exercisable as of March 31, 2022 Subsidiary, Sale of Stock [Line Items] Shares Available for Grant, Option granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Issuance of options under plan Number of Shares, Granted Entity Current Reporting Status Entity Current Reporting Status Percentage of prepayment premium year two Debt Instrument Percentage of Prepayment Premium Year Two Debt instrument percentage of prepayment premium year two. Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average, Grant Summary of Stock-Based Compensation Expense by Function Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 2022 Computer Equipment [Member] Computer Equipment and Software Deferred offering costs. Deferred Offering Costs [Policy Text Block] Deferred Offering Costs Treasury bills Interest Income, Securities, US Treasury Selling, General and Administrative Expenses [Member] Selling, General and Administrative Expenses Long-term Debt, Type [Axis] Deferred Costs, Current Deferred Costs, Total Deferred costs, current Income Statement Location [Domain] Income Statement Location Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Summary of Changes in Level 3 Fair Value Instruments At the End of One Year Share-based Payment Arrangement, Tranche One [Member] Exercise of common stock warrants. Exercise of Common Stock Warrants Exercise of common stock warrants Debt instrument covenant maximum revenue Debt instrument covenant maximum revenue. Debt Instrument Covenant Maximum Revenue Preferred Stock, Shares Authorized Preferred stock, shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Expected to vest as of June 30, 2021 Weighted-Average Exercise Price, Expected to vest as of March 31, 2022 Increase (Decrease) in Accrued Liabilities, Total Increase (Decrease) in Accrued Liabilities Accrued and other current liabilities Minimum Minimum [Member] Weighted average contractual term, vested and expected Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Measurement Frequency [Domain] Measurement Frequency Common stock warrants, net exercised Stock Issued During Period, Value, Stock Options Exercised Issuance of common stock upon exercise of stock options Schedule of Debt [Table Text Block] Schedule of Long-term and Short-term Debt Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Grant Series B Redeemable Convertible Preferred Stock Series B redeemable convertible preferred stock. Series B Warrants to purchase common stock Warrants issued to purchase shares of convertible preferred stock Class of Warrant or Right, Number of Securities Called by Warrants or Rights Debt instrument payment terms Debt Instrument, Payment Terms Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized stock-based compensation of unvested options Debt Instrument [Axis] Debt Instrument Entity Filer Category Entity Filer Category Aggregate Fair Value Aggregate Fair Value Debt Securities, Held-to-maturity, Fair Value Severance and related payments to employees Severance Costs Document Fiscal Year Focus Document Fiscal Year Focus Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested and exercisable as of June 30, 2021 Number of Shares Vested and exercisable as of March 31, 2022 Interest Payable, Current Short term interest payable Construction in Progress [Member] Construction In Process Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average grant-date fair values of options granted Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated deficit Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Interest payable non current. Interest Payable Non Current Long term interest payable Debt discount amortized term Debt Discount Amortized Term Debt discount amortized term. Entity Ex Transition Period Entity Ex Transition Period Lessee, Operating Lease, Remaining Lease Term Remaining lease term Fair Value Disclosures [Abstract] Maximum Maximum [Member] redeemable convertible preferred stock outstanding. Redeemable convertible preferred stock outstanding Entity Central Index Key Entity Central Index Key Incentive Stock Option Incentive stock option. Incentive Stock Option [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares Vested Operating lease expense Operating leases, rent expense Operating Lease, Expense Issuance of options and restricted stock units under stock plan [Member] Issuance of options and restricted stock units under stock plan [Member] Issuance of options and restricted stock units under stock plan Entity Tax Identification Number Entity Tax Identification Number Equity Component [Domain] Equity Component Preferred Stock, Par or Stated Value Per Share Preferred stock par value Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility Two thousand Nineteen warrants. Two Thousand Nineteen Warrants [Member] 2019 Warrants 2019 Warrants [Member] Segments [Domain] Segments Weighted-average period expected to recognize Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Tranche One and Two Loans Tranche one and two loans. Tranche One And Two Loans [Member] Increase (Decrease) in Accounts Receivable Accounts receivable Subsequent Events [Abstract] Subsequent Event [Line Items] Leasehold Improvements [Member] Leasehold Improvements Common stock options issued and outstanding Common Stock Options Issued And Outstanding [Member] Common stock options issued and outstanding. Statement [Table] Statement [Table] Selling, General and Administrative Expense, Total Selling, General and Administrative Expense Selling, general and administrative Entity File Number Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments, Total Conversion of preferred stock warrants to common stock warrants upon the closing of the IPO Other noncurrent assets Increase (Decrease) in Other Noncurrent Assets Accumulated Deficit Retained Earnings [Member] Series D Redeemable Convertible Preferred Stock Series D Series D Redeemable Convertible Preferred Stock [Member] Series D redeemable convertible preferred stock. Revenue from Contract with Customer, Excluding Assessed Tax, Total Revenue from Contract with Customer, Excluding Assessed Tax Revenue Payments of Stock Issuance Costs Estimated offering costs Common stock issuance cost Series E issuance costs Increase (Decrease) in Accounts Payable, Total Increase (Decrease) in Accounts Payable Accounts payable Lessee, Operating Lease, Discount Rate Operating lease, discount rate Liabilities, Current [Abstract] Current liabilities: Common stock available for future grant Common Stock Available For Future Grant [Member] Common stock available for future grant. Share-based Payment Arrangement [Text Block] Equity Incentive Plans Subsequent Event [Member] Subsequent Event Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Weighted average contractual term, vested and expected Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Average Intrinsic Value, Vested and expected as of March 31, 2022 Operating Lease, Liability Present value of future minimum lease payments Present value of future minimum lease payments Series E Redeemable Convertible Preferred Stock Series E Redeemable Convertible Preferred Stock [Member] Series E redeemable convertible preferred stock. Series E Common Stock [Member] Common Stock Property and equipment, gross Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross Cover [Abstract] Credit Facility [Domain] Credit Facility Total base rent under lease agreement. Total base rent under lease agreement Total base rent under lease agreement Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Ending Balance, shares Beginning Balance, shares Shares Outstanding Temporary Equity, Shares Outstanding Redeemable convertible preferred stock, shares outstanding Schedule of Extinguishment of Debt [Table Text Block] Repayment Schedule Relating to the Company's Debt Statement of Stockholders' Equity [Abstract] Property, Plant and Equipment [Table] Schedule Of Property Plant And Equipment [Table] Ending Balance Beginning Balance Balance - June 30, 2020 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Share-based Payment Arrangement [Abstract] Debt instrument principal and interest payment term Debt Instrument Principal and Interest Payment Term Debt instrument principal and interest payment term. Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments Restricted Stock Units RSU Restricted Stock Units (RSUs) [Member] Restricted Stock Units Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset Schedule of Segment Reporting Information, by Segment [Table] Other Accrued Liabilities, Current Other accrued liabilities Document Transition Report Document Transition Report Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value Weighted average, Vested Proceeds from Stock Options Exercised Proceeds from exercise of common stock options Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Defined contribution plan, maximum annual contributions per employee Line of credit facility, commitment fee description Line of Credit Facility, Commitment Fee Description Redeemable convertible preferred stock warrants liabilities. Redeemable Convertible Preferred Stock Warrants [Member] Redeemable Convertible Preferred Stock Warrants Research and development Research and Development Expense, Total Research and Development Expense Cost of Goods and Services Sold, Total Cost of Goods and Services Sold Cost of goods sold Total Payments of stock issuance costs related to initial public offering. Payments Of Stock Issuance Costs Related To Initial Public Offering Payments of costs related to initial public offering Senior Secured 2019 Term Loan Senior secured 2019 term loan. Senior Secured Two Thousand Nineteen Term Loan [Member] Dividends, Common Stock, Total Dividends, Common Stock Dividends declared Share-based Payment Arrangement, Expense Total stock-based compensation expense Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease), Total Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Change in fair value Segments [Axis] Segments Inventory Write-down Provision for excess and obsolete inventories Statement of Financial Position [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, vote for each share. Common Stock Vote for Each Share Number of votes entitled per share of common stock Nature of Operations [Text Block] Company and Nature of Business Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Issuance of Series E convertible preferred stock, shares Temporary Equity Stock Issued During Period Shares New Issues Temporary equity, stock issued during period shares, new issues. Cash and Cash Equivalents [Axis] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted-Average Exercise Price, Exercised/released Unpaid initial public offering costs in accounts payable and accrued liabilities Unpaid Initial Public Offering Costs In Accounts Payable And Accrued Liabilities Unpaid initial public offering costs in accounts payable and accrued liabilities. Increase (Decrease) in Inventories, Total Increase (Decrease) in Inventories Inventory Other Noncurrent Liabilities [Table Text Block] Summary of Other Noncurrent Liabilities Long-Term Debt, Maturity, Year Four Thereafter Thereafter Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Common stock reserved for future issuance Common Stock, Capital Shares Reserved for Future Issuance Common stock reserved for future issuance Measurement Frequency [Axis] Measurement Frequency Award Type [Axis] Award Type Debt, Long-term and Short-term, Combined Amount Total amounts outstanding Underwriting discounts and commissions Underwriting discounts and commission. Underwriting Discounts And Commission Entity Shell Company Entity Shell Company Sale of Stock, Price Per Share Sale of stock, price per share Liabilities and Equity [Abstract] Liabilities, redeemable convertible preferred stock, and stockholders' equity (deficit) Debt instrument, effective interest rate Debt Instrument, Interest Rate, Effective Percentage Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Series C Redeemable Convertible Preferred Stock and Warrants Series C Redeemable Convertible Preferred Stock and Warrants Series C Redeemable Convertible Preferred Stock and Warrants [Member] Series C redeemable convertible preferred stock and warrants. Earnings Per Share [Text Block] Net Loss per Share Attributable to Common Stockholders London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Amendment Flag Amendment Flag Dry Eye Dry eye. Dry Eye [Member] Other Nonoperating Income (Expense), Total Other Nonoperating Income (Expense) Other (expense) income, net Common stock issued Sale of Stock, Number of Shares Issued in Transaction Number of shares sold Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements Not Yet Adopted Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Debt Instrument, Fair Value Amount Debt Instrument Fair Value Amount Debt Instrument Fair Value, Amount Total repayments Total repayments Term Loan Long-term Debt Long-term Debt, Total Long-term Debt Surgical Glaucoma Surgical Glaucoma. Surgical Glaucoma [Member] Fair Value, Recurring [Member] Fair Value, Recurring Subsequent Events Subsequent Events [Text Block] Options granted merit awards. Options Granted Merit Awards Options Granted Merit Awards [Member] Paycheck Protection Program loan. Paycheck Protection Program Loan [Member] PPP Loan Antidilutive Securities, Name [Domain] Antidilutive Securities, Name Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Other Assets, Noncurrent Other noncurrent assets Other Assets, Noncurrent, Total Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Average Intrinsic Value, Vested and exercisable as of March 31, 2022 Cost of Sales [Member] Cost of Goods Sold Sale of Stock [Axis] Sale of Stock Fair value of warrants Fair value of warrants. Fair Value Of Warrants Proceeds from issuance of common stock Proceeds from Issuance of Common Stock