Chuka-Okosa C M
Department of Ophthalmology, University of Nigeria, Teaching Hospital, Enugu.
West Afr J Med. 2005 Jan-Mar;24(1):62-5. doi: 10.4314/wajm.v24i1.28166.
To determine the prevalence and types of refractive errors seen among students of Girls' Secondary School, Akegbe Ugwu in Nkanu West Local Government area of Enugu State, Nigeria.
A questionnaire documented the students' personal data, their chief complaints and past ocular history. This was followed by unaided visual acuity assessment then assessment with pinhole, anterior segment examination, fundoscopy, non-cycloplegic objective and subjective refraction in those found to have an unaided visual acuity of less than 6/9 in either eye and improved vision with pinhole.
A total of 355 students aged 12 -21 years was tested. Out of these, 9 (2.53%) had uncorrected vision worse than 6/9 in either or both eyes. Uncorrected refractive error accounted for the reduced vision in 7 cases 5 of which were myopia.
There is a prevalence of refractive error of 1.97 % among students of this rural girls' secondary school in South-Eastern Nigeria. The low prevalence of myopia (1.4%) found agrees with the report that, though the most common refractive cause of visual impairment globally, it is relatively rarer in Africans.
确定尼日利亚埃努古州恩卡努西部地方政府辖区阿凯格贝乌古女子中学学生中屈光不正的患病率及类型。
通过问卷调查记录学生的个人数据、主要诉求及既往眼部病史。随后进行裸眼视力评估,接着对裸眼视力低于6/9且针孔镜检查视力有改善的学生进行针孔镜检查、眼前节检查、眼底检查、非散瞳客观验光和主观验光。
共检测了355名年龄在12至21岁的学生。其中,9名(2.53%)学生一只或两只眼睛的未矫正视力低于6/9。7例视力下降是由未矫正的屈光不正所致,其中5例为近视。
在尼日利亚东南部这所农村女子中学的学生中,屈光不正的患病率为1.97%。所发现的低近视患病率(1.4%)与以下报告相符:近视虽是全球视力损害最常见的屈光原因,但在非洲人中相对少见。