Effect of Pupil Size on Flicker ERGs Recorded With RET<i>eval</i>System: New Mydriasis-Free Full-Field ERG System

Abstract

The results suggest that the effective retinal illuminance of the stimulus delivered by the RETeval system decreases for large pupil sizes. However, in most clinical testing situations, patients' undilated pupils will likely be sufficiently small to fall within the range for which the system delivers a stimulus of constant retinal illuminance.