Proliferative vitreoretinopathy: update in prevention and treatment

Proliferative vitreoretinopathy remains the leading cause of anatomical failure after rhegmatogenous retinal detachment repair, affecting 5 to 12% of primary detachment and up to 75% of redetachments. Although small-gauge vitrectomy, chromovitrectomy, high-definition intraoperative viewing systems and advanced preoperative imaging have revolutionized retinal surgery, the incidence of proliferative vitreoretinopathy has not decreased significantly over the past two decades. It represents a maladaptive wound-healing response in which inflammatory and fibrogenic pathways drive the formation of contractile preretinal, intraretinal, and subretinal membranes. [...]