Proliferative diabetic retinopathy is treated by
Panretinal photocoagulation (PRP) is the preferred form of treatment of proliferative diabetic retinopathy(PDR). ... In cases where macular edema and PDR coexist, laser treatments are performed: first, laser treatment is used for the macular edema; then for PDR, the PRP is spread over 3 to 4 sessions Ref AK khurana 6/e p278
Pan retinal photocoagulation
Pars plana vitrectomy
Grid laser photocoagulation
Focal retinal photocoagulation
Vitreous and retina