[An update on the treatment of central retinal vein thrombosis (retinal vein occlusion)].

The paper reviews the actual therapeutical means in a severe invalid eye disease. The treatment is not able to improve the retinal blood flow, being more effective on the main symptoms and complications. The isovolumetric hemodilution method as an up-to-date method in the treatment of central retinal vein occlusion, appears to bring better recuperation hopes, by a higher improvement of the local anatomical and hemodynamical factors. That is the reason why we shall expose it widely in our paper. Unfortunately, despite its complexity, the treatment of central retinal vein occlusion is not satisfactory from the point of view of the high number of patients that remain with a low visual acuity. The main goal of the therapy is the recovery of visual function, but a few aspects and especially the late presentation for ophthalmological examination, reduce the objective of treatment to prevent complications.