两种视力表检测弱视患儿视力的相关性研究

Relevance of visual acuity measurement using two visual acuity charts in amblyopic children

目的 评价两种视力表检测不同类型弱视患儿视力结果的相关性.方法 选取不同类型弱视患儿119例（213眼）,其中屈光不正性弱视40例（80眼）、屈光参差性弱视41例（58眼）、斜视性弱视38例（75眼）,分别使用标准对数视力表和视觉噪声双视力表检测患儿的最佳矫正视力;使用Spearman相关分析评价两者的相关性.结果 屈光不正性弱视患儿、屈光参差性弱视患儿、斜视性弱视患几分别经标准对数视力表与视觉噪声双视力表检测,两种视力表所测得结果之间存在相关性.结论 标准对数视力表与视觉噪声双视力表在三类弱视患儿中检测结果均存在较好的线性关系,但不同弱视类型的相关性强弱存在差异：相关性在屈光参差性弱视中最高,在屈光不正性弱视中最低.

Objective To evaluate the correlation of visual acuity measured using two different types of eye chart in children with amblyopia.Methods 119 cases （213 eyes） amblyopia patients were selected,including 40 cases （80 eyes） of refractive amblyopia,41 cases （58 eyes） of anisometropia amblyopia,and 38 cases （75 eyes） of strabismus amblyopia were selected.Best corrected visual acuity （BCVA） were determined using standard visual chart and visual noise dual chart and the correlation between the two visual acuity result were explored using Spearman＆#39;s correlation analysis.Results The visual acuity in refractive amblyopia,anisometropia amblyopia and strabismus amblyopia determined by standard visual chart was statistically correlated with that determined by visual noise dual visual acuity chart.Conclusions The visual acuity measured by standard vision chart showed satisfactory linear relationship with that measured by visual acuity chart double among three types of amblyopia,however,the strength of correlation coefficient between different types of amblyopia were different：correlation coefficient in anisometropic amblyopia was the highest,and the coefficient in refractive amblyopia was the lowest.