Scientific Journal Publications

Long-term outcomes of anti-VEGF treatment of retinal vein occlusion

Spooner KL, Fraser-Bell S, Hong T, Wong JG, Chang AA

Abstract

Background/objectives

To analyze the long-term outcomes of eyes with retinal vein occlusion (RVO) 8 years after commencing treatment with anti-vascular endothelial growth factor (VEGF) agents.

Subjects/methods

Retrospective, multicentre study of 221 eyes diagnosed with RVO, which were commenced on anti-VEGF therapy between 2009 and 2011. VA and CRT were recorded at baseline and at subsequent annual time points. The mean number of injections administered each year and the incidence of adverse events were recorded.

Results

Of a total of 221 eyes which commenced treatment with anti-VEGF agents for RVO, 95 were diagnosed with BRVO and 126 with CRVO. 8-year data were available for 94 eyes (43%). The mean age of patients was 65.1 ± 12.0 years. Mean VA improved from baseline by 16.9 letters, (57.8-74.7 letters), (P < 0.001). For BRVO eyes, mean VA improved from 60.5 to 74.8 letters (p < 0.001) and for CRVO eyes from 52.0 to 66.4 letters (p < 0.001). In all RVO eyes, there was a reduction in mean CRT from 501.0 to 249.1 µm; in BRVO eyes from 472.4 to 284.7 µm and in CRVO eyes from 533.9 to 267.5 µm. In the 8th year after starting treatment, eyes with RVO were receiving a mean of four injections.

Conclusion

Good long-term outcomes of VEGF inhibition for eyes with RVO were found in this study. Patients maintained a gain of 3-lines of vision 8-years after the commencing therapy. This encouraging result contrasts with long-term studies of patients with neovascular age-related macular degeneration, where initial gains are lost over time.

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