Screening for amblyopia among grade-1 students in primary school with uncorrected vision a

Screening for amblyopia among grade-1 students in primary school with uncorrected vision and

stereopsis test in central China

FU Jing;LI Shi-ming;LI Jin-ling;LI Si-yuan;LIU Luo-ru;WANG Yang;LI He

【期刊名称】《中华医学杂志（英文版）》 【年(卷),期】2013(126)005

【摘要】Background Screening for amblyopia at earliest is important for early treatment and better prognosis.This study aimed to evaluate the validity of uncorrected distant and near visual acuity (VA) and stereoacuity for screening amblyopia in grade-1 students in primary school in central China.Methods By stratified cluster sampling,3112 grade-1 students from 11 Anyang primary schools were selected for the study.All the participants underwent uncorrected distant and near VA,stereopsis test,cycloplegic refraction,best corrected VA (BCVA),cover test,and ocular movement examination.VA was measured with a logarithm

of

the

minimum

angle

of

resolution

(IogMAR)

chart.Stereoacuity was measured with the Lang Ⅱ stereo card and TNO test.Amblyopia was defined as the BCVA less than or equal to 0.1 IogMAR units of any eye in the absence of significant pathological abnormalities.The sensitivity,specificity,and positive and negative predictive value of uncorrected VA and stereoacuity for amblyopia were analyzed.Results Out of the 3112 eligible students,2893 (92.96％)

completed the examinations.The average age of the students was (7.10±0.41) years.Screened by distant VA with low cutoff (IogMAR 0.1),high 0.0),31.64

cutoff ％

(IogMAR ％

,and

0.0),and 50.23

near ％

VA

(IogMAR

were

,73.18students

abnormal,respectively.Screened by stereopsis test,only 4.69％ students were abnormal.Diagnosed by a senior pediatric ophthalmologist,61 students had amblyopia.The sensitivities of distant VA with low/high cutoff and near VA were 92.31％,100％,and 80.77％,respectively,whereas that of stereoacuity by TNO test was 15.38％.Simultaneous testing of either two of the three tests improved the sensitivity.Conclusions Distant VA test of high cutoff alone displays a high sensitivity but a low specificity.Simultaneous testing of distant VA of low cutoff and stereoacuity is a better choice to balance between sensitivity and specificity.

【总页数】6页(903-908) 【关键词】

【作者】FU Jing;LI Shi-ming;LI Jin-ling;LI Si-yuan;LIU Luo-ru;WANG Yang;LI He

【作者单位】Anyang Eye Hospital, Anyang, Henan 455000, China 【正文语种】英文 【中图分类】 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_chinese-medical-journal_thesis/0201254432558.html 【相关文献】

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