Optical coherence tomography angiography in myopic choroidal neovascularization after intravitreal ranibizumab

Abstract

Purpose: To describe the optical coherence tomography angiography characteristics of myopic patients with choroidal neovascularization secondary to pathologic myopia during ranibizumab therapy. Methods: Nineteen patients were enrolled in this prospective study (13 females, 6 males, mean age 55.25 ± 9.63 years) for a total of 20 eyes examined (14 right eyes, 6 left eyes). Images were analyzed independently by two examiners. Results: Mean follow-up was 5.75 ± 1.88 months, with a mean intravitreal injections of 1.90 ± 0.44. Mean best-corrected visual acuity at baseline was 0.39 ± 0.18 logMAR versus 0.26 ± 0.16 logMAR 6 months after treatment. The neovascular area (Z = –2.091, p = 0.037) was significantly reduced after treatment, whereas vessel density was not (Z = –1.848, p = 0.065). Moreover, the best-corrected visual acuity was increased (Z = –3.055, p = 0.002). Neovascular area was significantly correlated with best-corrected visual acuity, at both baseline and follow-up (p < 0.05). Conclusion: Our data suggest that optical coherence tomography angiography is a reproducible non-invasive examination with which to monitor changes in the neovascular area in patients with pathologic myopia treated with ranibizumab.