Panretinal photocoagulation

Wand M, Dueker DK, Aiello LM, Grant WM. Effects of panretinal photocoagulation on rubeosis iridis, angle neovascularization, and neovascular glaucoma. Am J Ophthalmol 1978 86 332-339. 

CRYO at the three-month follow-up. At baseline, 50% of the patients with nonischemic CRYO started with visual acuity of at least 20/50 and at one year 59% of these patients maintained this vision. In patients with ischemic CRVO 48.5% improved by two or more lines at one year with 25% achieving 20/50 or better visual acuity (one of 35 started with this level of visual acuity). In this study, all ischemic patients received xenon panretinal photocoagulation (PRP) prophylactically. In a separate study, Hansen et al. (56) demonstrated that hemodilution plus PRP led to superior visual acuity outcome when compared to administration of PRP alone. Five of 19 in the treatment group improved their visual acuity by at least two lines at one year follow-up compared with none of the control group (PRP alone). 

Tonello M, Costa RA, Almeida FPP, Barbosa JC, Scott lU, Jorge R. Panretinal photocoagulation versus PRP plus intravitreal bevacizumab for high-risk proliferative diabetic retinopathy (IBeHi study). Acta Ophthalmol 2008 86 385-9. 

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