Ultra-Widefield Fluorescein Angiography-Based Targeted Retinal Photocoagulation Versus Conventional Panretinal Photocoagulation in the Preservation of Visual Function and Regression of Proliferative Diabetic Retinopathy

Inclusion Criteria: * proliferative diabetic retinopathy (PDR) with neovascularization on the disc or elsewhere in the retina Exclusion Criteria: * Participants with a history of previous history of: * retinal photocoagulation * vitreoretinal surgery * tractional retinal detachment * epiretinal membrane * vitreomacular traction * glaucoma * uveitis * media opacities like cataract, corneal opacity, vitreous hemorrhage * anti-VEGF injections in last 3 months