• Negative and Positive Dysphotopsia: IOL exchange Description: 56 year-old woman with negative and positive dysphotopsia after uneventful cataract surgery. Symptoms were resolved after IOL exchange with a Staar AQ2015A Collamer PCIOL in a reverse optic capture position. Subspecialty: Cataract / Anterior Segment Level: Advanced Uploaded By: ISRS Multimedia Library