Prevalence and associated factors of corneal blindness in Ningxia in northwest China
Prevalence and associated factors of corneal blindness in Ningxia in northwest China作者机构：Ningxia Eye Hospital Ningxia People's Hospital Department of Ophthalmology Tongxin Hospital Ningxia Hui Autonomous Region China Department of Ophthalmology Ningxia Medical University
出 版 物：《International Journal of Ophthalmology(English edition)》 (国际眼科杂志（英文版）)
年 卷 期：2014年第7卷第3期
页 面：557-562页
核心收录：
学科分类：1002[医学-临床医学] 100212[医学-眼科学] 10[医学]
基 金：Supported by Consultation Program of Chinese Academy of Engineering(No.2009-77) Research Program of Ningxia Science and Technology Department(No.NKJ2010-168)
主 题：corneal disease epidemiology blindness infectious keratitis trauma
摘 要：AIM:To describe the prevalence and demographic characteristics of corneal blindness in an urban and rural region of Ningxia,located in the northwest part of ***:A stratified,randomized sampling procedure was employed in the study,including urban and rural area of all age *** acuity,anterior segment and ocular fundus were *** factor of corneal disease,including age,gender,education status,ethnic group,location and occupation,were identified according to uniform customized *** eye was defined to be corneal blindness if the visual acuity was20/400 due to a corneal ***:Three thousand individuals(1290 from urban area and 1710 from rural area)participated in the investigation,with a response rate of 80.380%.The prevalence of corneal blindness was 0.023%in both eyes and 0.733%in at least one *** blindness in at least one eye with varied causes was present in 106participants(3.533%)and in bilateral eyes in 34participants(1.133%).The corneal diseases accounted for 20.754%of blindness in at least one eye and 20.588%of bilateral *** prevalence of corneal disease was higher in older and Han ethnic group,especially those who occupied in agriculture and outdoor *** with corneal blindness were more likely to be older and lower *** population were more likely to suffer from bilateral corneal blindness than the urban population in≥59-year group(χ2=6.716,P=0.019).Infectious,trauma and immune corneal disease were the three leading causes of corneal *** cornealdisease was more likely leading to blindness in one ***,infectious and immune corneal diseases make more contribution to the bilateral corneal ***:Corneal blindness is a significant burden of in Ningxia population,encompassing a variety of corneal infections and trauma;the majority of those were *** promotion strategies and good hygienic conditions have to be developed.
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