Abstract
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'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. Key words: Amblyopia; Visual chart; Vision; Relevance
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