Related Experiment Video
Updated: Aug 29, 2026

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
Published on: September 18, 2012
Sprint car visual loss
Valerie Purvin1, Raj Maturi, Michael S Vaphiades
1Midwest Eye Institute, Indianapolis, Indiana 46280, USA.
Abstract:
A 16-year-old boy developed bilateral visual loss 24 hours after a sprint car accident. Bilateral central scotomas were demonstrated but were unexplained by a thorough eye examination and neuro-imaging. A diagnosis of commotio retinae was established by multi-focal ERG testing. This relatively new technique is discussed, including comparison to full-field ERG and clinical applications.
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