A Case Report: Electrophysiological Findings in Degenerative Myopia

We report electrophysiological findings in a patient that has degenerative myopia. The visual acuity of a 48 years old male patient was counting fingers from 0.1 with refraction (-11.00, -1.00 x115) in the right eye and 0.6 with refraction (-5.00, -1.50 x35) in the left eye. Bilateral anterior segment examination was normal however; on the fundus examination, there were atrophic scar area in the macula and pigmented degenerative areas in the inferior on the right, while there were chorioretinal atrophy and degenerative areas in the peripheric retina on the left. Normal latency response was obtained in VEP. In the right eye, a low amplitude and long latency response was obtained with the 120' pattern, but no response was obtained with the other patterns. In the left eye, there was a response to patterns shrinking to 15', the p100 wave was minimally low for age, and its latency was within normal limits. 7' pattern could not be answered. With ERG, bilateral rod b wave responses were subnormal for age, and cone b wave responses were low. Oscillatory responses were obtained bilaterally low.