proliferative vitreoretinopathy
Pronunciation: pro-LIF-er-ah-tiv VIT-ree-oh-ret-in-OP-ah-thee
Scarring complication following retinal detachment surgery characterized by formation of contractile membranes. Major cause of surgical failure requiring complex revision procedures.
Full Definition
A serious complication of retinal detachment characterized by the formation of cellular membranes on both surfaces of the detached retina and within the vitreous cavity. These membranes contain contractile elements that can cause progressive retinal distortion, fixed folds, and recurrent detachment despite anatomically successful initial surgery. PVR represents the most common cause of failed retinal detachment repair and often requires multiple surgical interventions including membrane peeling, relaxing incisions, and long-term internal tamponade. The condition significantly impacts visual prognosis and surgical complexity.
Usage
Usage note: Commonly abbreviated as PVR; grading system (A, B, C) should be specified when applicable.
In Context
- "Grade C proliferative vitreoretinopathy required extensive membrane peeling and silicone oil tamponade." — Complex retinal surgery report
- "Risk factors for proliferative vitreoretinopathy include large tears and delayed surgical repair." — Patient counseling documentation