【摘要】 本文报告了北京市怀柔县盲目及低视力的流行病学调查:双盲患病率为0.39%;双眼低视力的患病率为0.42%。主要致盲眼病依次为沙眼、青光眼、角膜病及老年性白内障等。双眼低视力的病因与双眼盲的病因基本相同。50%以上的盲人是在20年以前致盲的,50%以上的低视力是近年发病的。更多还原

【Abstract】 This paper reports the epidemiological survey of blindness and low vision in Huai-rou county, Beijing. The incidence of binocular blindness is 0.39%, and that of binocular low vision 0.42%. The common diseases causing blindness are: tracnoma, glaucoma, corneal dieases and senile cataract in order of frequency. The causes of binocular low vision are almost the same as that of binocular blindness. Over 50% of the blind patients suffered twenty years ago and about half of the low vision patients are new sufferers in recent years.更多还原