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Segment Information - Summary of Operating Result Information for Each Reportable Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Revenue    
Revenue $ 18,824 $ 14,881
Cost of goods sold    
Cost of goods sold 3,048 3,033
Gross profit    
Gross profit 15,776 11,848
Operating expense 33,344 34,041
Loss from operations (17,568) (22,193)
Interest expense (1,276) (1,046)
Other (expense) income, net 1,791 (15)
Loss before income tax (17,053) (23,254)
Surgical Glaucoma    
Revenue    
Revenue 17,334 13,870
Cost of goods sold    
Cost of goods sold 2,362 1,491
Gross profit    
Gross profit 14,972 12,379
Dry Eye    
Revenue    
Revenue 1,490 1,011
Cost of goods sold    
Cost of goods sold 686 1,542
Gross profit    
Gross profit $ 804 $ (531)