Abstract
The purpose of this study was to investigate how often glaucoma and neovascular age-related macular degeneration (nAMD) occur in the same patient and to evaluate whether glaucoma progression is faster in eyes treated with intravitreal anti-VEGF medications for nAMD. This single-centre retrospective real-world data (RWD) consists of medical records of 6314 glaucoma and 2166 nAMD patients treated in 2008-2017 in Tays Eye Centre, Finland. To study glaucoma progression, changes in visual fields (mean deviation [MD], dB/year), IOP (mmHg/year) and fundus photographs (progression, yes/no) were compared in glaucoma eyes with and without anti-VEGF treatment for nAMD and ≥1year follow-up. During the 10-year period, 147 patients with glaucoma received intravitreal anti-VEGF treatment for nAMD corresponding to 2% of glaucoma and 7% of nAMD patients. The mean change in MD was -0.70 dB/year (SD 1.8) vs. -0.27 dB/year (SD 1.7) (p= 0.027) in glaucoma eyes with (n= 37) and without (n= 4304) anti-VEGF injections, respectively. In patients with bilateral glaucoma and unilateral nAMD treated with anti-VEGF injections (n= 20), MD declined at -0.62 dB/year (SD 1.9) vs 0.33 dB/year (SD 1.5) (p= 0.654), and glaucoma progression was detected in 14/20 vs 10/20 (p= 0.219) fundus photographs in eyes with anti-VEGF treatment compared with their untreated fellow eyes. nAMD and glaucoma were found co-existing in the same eye at rates that were similar to the age-corrected prevalence of the two diseases in the general population. Our results suggest that intravitreal anti-VEGF treatment for nAMD may accelerate glaucoma progression.
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