Financial Liabilities - Notes Payable, Additional Information (Details) $ in Thousands			1 Months Ended			12 Months Ended
	May 04, 2023	Mar. 12, 2023 USD ($)	Aug. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2021 USD ($) item	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2021 USD ($)
Credit Agreement
Protective advance requested under Credit Agreement representing a short-term bridge loan							$ 2,000
Gain (loss) on extinguishment of debt						$ (27,950)	$ 14,190
2021 Amended Credit Facility
Credit Agreement
Outstanding borrowings under credit facility, net of unamortized discount					$ 20,833			$ 25,000
Interest rate floor (as a percent)					1.00%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]					ocul:LondonInterbankOfferedRateMember
Basis spread (as a percent)					6.75%
Net proceeds from credit facility					$ 4,167
Final payment due at maturity					$ 5,208
Exit fee (as a percent)					3.50%
Credit Facility, Final Interest Payment					$ 875
Debt instrument carrying amount					$ 25,000
2021 Amended Credit Facility | Period commencing May 2024
Credit Agreement
Number of equal monthly installments | item					19
Required monthly principal payment					$ 1,042
MidCap Credit Facility
Credit Agreement
Protective advance requested under Credit Agreement representing a short-term bridge loan		$ 2,000
Repayment of protective advance				$ 2,000
Repayment of debt including principal, interest, exit and prepayment fees			$ 26,157
Repayment of debt, principal and interest			25,017
Payment of exit and prepayment fees in satisfaction of debt obligation			1,140
Gain (loss) on extinguishment of debt			$ (717)
MidCap Credit Facility | Maximum
Credit Agreement
Threshold percent of cash and cash equivalents to be maintained under debt agreement	50.00%