Abstract

To investigate the 10-year visual outcome and chorioretinal atrophy after a single intravitreal ranibizumab injection (IVR) followed by a pro re nata (PRN) regimen for myopic macular neovascularization (mMNV) in pathologic myopia, and to identify the factors associated with 10-year best-corrected visual acuity (BCVA). This retrospective observational study evaluated 26 consecutive treatment-naïve eyes (26 patients) with mMNV in pathologic myopia who underwent a single IVR followed by a PRN regimen of IVR and/or intravitreal aflibercept injection and observed over 10 years. We assessed changes in BCVA and morphological parameters, including the META-PM Study category as a chorioretinal atrophy index. The logarithm of the minimum angle of resolution BCVA changed from 0.36 (Snellen, 20/45) ± 0.39 to 0.39 (20/49) ± 0.36 over 10 years of observation. Compared to baseline, 1-year BCVA improved (P = 0.002), whereas 2-10-year BCVA was not significantly different. Total injection frequency was 3.8 ± 2.6. In none of the eyes, 10-year BCVA was 20/200 or less. Ten-year BCVA correlated with baseline BCVA (P = 0.01, r = 0.47). The META-PM Study category progressed in 60% of eyes. There were no drug-induced complications. BCVA in eyes with mMNV in pathologic myopia was maintained for 10 years after a single IVR followed by a PRN regimen without drug-induced complications. The META-PM Study category progressed in 60% of eyes, especially those with older baseline age. Early diagnosis and treatment of mMNV are essential to maintain good long-term BCVA.

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