RESUMO
Central and branch retinal vein occlusions (CRVO and BRVO) are among the most common and serious retinal diseases presenting to the ophthalmologist. Up to now, accepted treatment modalities have been limited to argon retinal laser photocoagulation in a small percentage of patients, and management for co-existing systemic conditions such as diabetes and hypertension. Modern developments in laser technology and vitreo-retinal surgical techniques have made available new treatment options for CRVO and BRVO. Grid treatment and transpupillary thermotherapy with the diode 810mm laser a promising technique for treating macular oedema in CRVO and BRVO. Also, micropulse pan-retinal photocoagulation with the 810mm laser may be of benefit in including regression of neovascularization in CRVO. Use of lasers to create a choroidal-retinal circulation shunt is also being re-evaluated. Pars plana vitrectomy allows direct surgical access to the area of occlusion in a BRVO and the ability to relieve the venous obstruction with resultant improvement in retinal oedema and haemorrhages. Oral inhibitors of angiogenesis provide a means of reducing the incidence of neovascularization in CRVO and BRVO.(AU)
