This study evaluated changes in retinal sensitivity (RS) during aflibercept treatment in neovascular age-related macular degeneration (nAMD) patients with good vision. Treatment-naive nAMD patients with visual acuity better than 20/40 were treated with an aflibercept loading regiment, and RS was measured using the MAIA microperimetry device. The study examined RS differences based on visit, region, adjacent local pathology, outer retinal changes and optical coherence tomography angiography (OCTA) data were investigated. Twelve patients completed the protocol. Mean RS improved from 17.9 (3.9) µm at baseline to 20.4 (4.7) µm at final visit, while best-corrected visual acuity (BCVA) did not change. (P = 0.041) RS at baseline is worst in the presence of intraretinal fluid (IRF) and improved after treatment for all retinal pathologies except IRF. RS improvement occurred even with initial outer retinal damage. A Linear mixed model showed subretinal hyperreflective material, baseline IRF height, outer retinal integrity, fibrovascular pigment epithelial detachment height, and local choroidal vascular index as factors associated with RS. In conclusion, RS improved with aflibercept treatment in nAMD eyes with good initial visual acuity, despite no change in BCVA, except when IRF was present.
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| http://dx.doi.org/10.1038/s41598-024-77485-5 | DOI Listing |
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