Electroretinogram and Visual Field Correlation in Birdshot Chorioretinopathy

Purpose: The aim of this study was to assess possible correlation between the visual field and electroretinogram (ERG) parameters in birdshot chorioretinopathy (BCR). Design: Retrospective cross-sectional study. Methods: This single-center study included 21 eyes of 11 patients with BCR with prior ERG and Goldmann kinetic perimetry. Generalized estimating equation was used for statistical analysis, and isopters V4e and I4e were modeled as separate outcomes with each parameter of ERG as the main independent variable. The main outcome measure was presence or absence of correlation between the Goldmann isopters and ERG parameters including the amplitudes and implicit times of dark adapted (DA) and light adapted (LA) a-waves and b-waves (DA 0.01, DA 3.0, DA 10.0, and LA 3.0) and LA 30 Hz. Results: There was a strong positive correlation between the size of isopter V4e and all the scotopic and photopic standard ERG amplitudes [P 
Source: Asia-Pacific Journal of Ophthalmology - Category: Opthalmology Tags: Original Study Source Type: research