• Traumatic Cataract & Mydriasis Description: Dr. David F. Chang of Los Altos, CA, presents a case of a traumatic cataract with a localized traumatic mydriasis, with a sphincter tear on the temporal side of the right eye. Submitted by Dr. David Chang (United States) Subspecialty: Cataract / Anterior Segment Level: Advanced Uploaded By: ISRS Multimedia Library