PASCAL panretinal photocoagulation (PRP) versus ETDRS PRP associated with intravitreal Ranibizumab (IVR) versus only IVR for proliferative diabetic retinopathy treatment - Barroso, Rafael de Montier; Messias, André Márcio Vieira; Cardillo, Jose A; Jorge, Rodrigo (Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO), 2015)