. Author manuscript; available in PMC: 2022 Sep 1.

Published in final edited form as: Ophthalmol Glaucoma. 2021 Jan 30;4(5):463–471. doi: 10.1016/j.ogla.2021.01.004

Table 1.

Introduction of relevant glaucoma therapeutics and procedure codes between 1994 and 2017.

Date	Therapeutic or coding change
1996	Brimonidine, latanoprost approved
1998	Brinzolamide approved
2001	Introduction of Selective Laser Trabeculoplasty (SLT)
2003	ExPRESS aqueous shunt approved (0192T, later 66183)
2005	Distinct codes available for endoscopic (66711) and trans-scleral (66710) cyclophotocoagulation
2012	iStent trabecular bypass shunt approved (0191T)
2016	CyPass supra-ciliary shunt approved (0474T)
2016	New laser and probe for “micropulse” cyclophotocoagulation
2017	XEN sub-conjunctival shunt approved (0449T)