AIM:To investigate the prevalence and related high risk factors of retinal vessels disease of native Tibetan among the aged 40 and above in Maqin county, Qinghai province, China.

METHODS:The cluster sampling method was used to investigate the visual acuity and retinal vessel diseases of the native Tibetan among the aged 40 and above in Maqin county.

RESULTS:Totally 2 511 individuals were underwent the survey, among them, 29 cases(37 eyes)were of retinal vessel diseases, the prevalence was 1.15%, 21 cases(23 eyes)were retinal vein obstruction(0.84%), 5 cases(10 eyes)were diabetic retinopathy(0.20%), 3 cases(4 eyes)were retinal vasculitis(0.12%). The blindness and low vision of retinal vessels disease were 23 eyes(0.92%).

CONCLUSION:All the hypertension, hyperglycemia, erythrocytosis, high altitude and weight are the high risk factors of retinal vessel diseases which are the main eyes fundus disease could grow blind.