Multifocal Electroretinogram Findings after Intravitreal Bevacizumab Injection in Choroidal Neovascularization of Age-Related Macular Degeneration

Purpose: To evaluate the changes in multifocal electroretinogram (mfERG) and optical coherence tomography(OCT) after intravitreal bevacizumab injection in the treatment of age-related macular degeneration (AMD). Methods: Twenty-one eyes with choroidal neovascularization secondary to AMD were studied before and after intravitreal bevacizumab injection for best corrected visual acuity (BCVA), OCT, and mfERG. Results: The BCVA improved, while central macular thickness and total macular volume in OCT decreased after intravitreal bevacizumab injection (p = 0.03, 0.01, and 0.01, respectively). In mfERG, the amplitude of P1, and implicit time of P1 and N1 indicated a statistically significant improvement of retinal response after intravitreal bevacizumab injection. Conclusions: There is a potential role for mfERG in evaluating the effect on retinal function of intravitreal bevacizumab injection.