Visual improvement in an adult amblyopic eye following branch retinal vein occlusion in non-amblyopic eye

ObjectiveTo report a case of anisometropic amblyopia reversal as a result of branch retinal vein occlusion (BRVO) occurring in the sound fellow eye.MethodsAn adult patient with childhood anisometropic amblyopia was found to exhibit gradually visual acuity improvement in the amblyopic eye as the result of decreased visual acuity in the sound fellow eye.ResultsFour years after the BRVO, the patient subsequently regained normal vision in the previously amblyopic eye.ConclusionVisual plasticity is preserved in adults but may require special or stronger stimulation and possibly longer treatment time than during childhood.