Li Jin-feng
Department of Ophthalmology, Linzhi People's Hospital, Tibet 860000, China.
Zhonghua Yan Ke Za Zhi. 2007 Sep;43(9):803-5.
To investigate the status of blindness and low vision in Motuo county of Tibet.
Random cluster sampling based on the village was adopted in this survey. Six villages were chosen as the survey venue. The sampling percentage was 2.05% in the whole population in the county. The criteria of blindness and low vision from World Health Organization were used in the survey.
821 individuals were registered. The rate of final participants was 89.52%. The prevalence of bilateral blindness and low vision was found to be 2.59% and 4.35% respectively. Subjects over 40 years old had a significantly higher prevalence of blindness and low vision. The causes leading to blindness and low vision were cataract (42.11%), corneal opacity (21.05%) and glaucoma (15.79%).
The leading cause of blindness and low vision is cataract in Motuo county, therefore the surgical application in cases with cataract is the main measure in the treatment of blindness in the county.
调查西藏墨脱县盲和低视力状况。
本调查采用以村为单位的随机整群抽样方法。选取6个村作为调查点。抽样比例为全县总人口的2.05%。调查采用世界卫生组织的盲和低视力标准。
登记821人，最终参与率为89.52%。双眼盲和低视力患病率分别为2.59%和4.35%。40岁以上人群盲和低视力患病率显著更高。导致盲和低视力的原因依次为白内障（42.11%）、角膜混浊（21.05%）和青光眼（15.79%）。
墨脱县盲和低视力的主要原因是白内障，因此白内障手术是该县治疗盲的主要措施。
