Comparing two techniques of panretinal photocoagulation on visual acuity on patients with proliferative diabetic retinopathy.

We wanted to examine which of two panretinal photocoagulation (PRP) techniques, classical panretinal photocoagulation (CPRP) and modifield peripheral panretinal photocoagulation PPRP), causes less decline of visual acuity (VA) due to macular edema (ME) in patients with proliferative diabetic retinopathy (PRD). This clinical study includes 180 eyes with PDR with initial papillar neovascularization. The patients were divided into two groups according the RP. PPRP and CPRP showed the decline of VA in all patients, more pronounced in the CPRP group after one week. After three and six months, with CPRP and PPRP the values of VA was stabilized. The result suggests that eyes with PDR and starting epipapillar neovascularisation should be treated with PPRP with priority given to CPRP because it caused better VA.