Fig. 2
From: Novel biallelic USH2A variants in a patient with usher syndrome type IIA- a case report
ERG report demonstrating no significant responses. In this ISCEV Ganzfeld report, ERG responses from the right and left eye are presented alongside with a control example. In both eyes (left worse than right), there are diminished responses to tests for rod, maximal response, oscillatory potentials, single flash (cone) response and flicker responses compared to the control. Analysis of amplitude and implicit times from testing did not show any significant response to stimuli (normal ranges indicated in brackets), indicating severely diminished retinal function