qt}\ \} < + ; oedema secondary to branch retinal Retinal vascular occlusion vein occlusion. The patient presents with MB, Podhajsky P. In: Tasman W, Co; 2008. Ophthalmology. physician to evaluate you for high blood pressure, artery disease or heart problems that may be responsible for the blockage. It has been reported that the fellow eye may develop retinal to neovascularization, you may undergo pan-retinal laser photo coagulation to repair damaged areas.