Risk factors in central retinal vein occlusion: A multi-center case-control study conducted on the Italian population : Demographic, environmental, systemic, and ocular factors that increase the risk for major thrombotic events in the retinal venous system.

Older age, active smoking, as well as presence of DMII, HHcy, DLip, CAD, glaucoma, OSAS, and uHTN, all increase the risk for CRVO. A comprehensive assessment of patients with CRVO is paramount. Adequate control of all the aforementioned risk factors is likely of great significance in reducing the incidence of CRVO among the general population, and it likely plays an important role in improving the prognosis following the occlusive event.