Photodynamic Therapy in Subfoveal and Juxtafoveal Myopic Choroidal Neovascularization: A 10-year Retrospective Analysis

The aim of this study was to evaluate and compare the effects of photodynamic therapy (PDT) in eyes with subfoveal and juxtafoveal choroidal neovascularization (CNV) secondary to pathological myopia. The study was a single-center, 10-year analysis on 19 eyes. Patients underwent best-corrected visual acuity (BCVA) measurement, slit-lamp examination, ophthalmoscopy and fluorescein angiography. Eyes with subfoveal CNV (7 eyes, 37%) progressively worsened during the 10-year follow-up from 0.68 ± 0.26 to 0.80 ± 0.47 logMAR, while in the eyes with juxtafoveal CNV (12 eyes, 63%) BCVA improved from 0.59 ± 0.42 to 0.33 ± 0.27 logMAR. Prevalence and extension of chorioretinal atrophy (CRA) were greater in eyes with subfoveal compared with juxtafoveal CNV (84 vs. 66%, respectively) and enlargement (10.05 ± 6.7 vs. 3.53 ± 4.7 mm(2), respectively). Our results confirm the limited long-term effectiveness of PDT in myopic subfoveal CNV. Satisfactory results can be achieved in juxtafoveal CNV with a better visual outcome and a minor CRA extension.