Retinal vein occlusion (RVO) ranged the second common cause of retinal vascular disease,consisting of central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO).1,2 Although the prevalence of CRVO was one-third of BRVO,it associated with worse prognosis both before and after the anti-vascular endothelial growth factor (VEGF) regimes came into clinic use.A recent pooled age-and sex-standardized analysis showed that the prevalence was 0.8 per 1 000 (CI:0.61-0.99) for CRVO around the world.3 Similarly,in our country,the 10-year incidence of CRVO in Beijing (2001-2011) was 0.3±0.1 per 100 persons.4
Retinal vein occlusion (RVO) ranged the second common cause of retinal vascular disease, consisting of central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO) Although the prevalence of CRVO was one-third of BRVO, it associated with worse prognosis both before and after the anti-vascular endothelial growth factor (VEGF) regimes came into clinic use. A recent pooled age- and sex-standardized analysis showed that the prevalence was 0.8 per 1 000 (CI: 0.61-0.99) for CRVO around the world. Similarly, in our country, the 10-year incidence of CRVO in Beijing (2001-2011) was 0.3±0.1 per 100 persons.