对比度检查及对低视力儿童康复的意义

Low Contrast Chart and Its Rehabilitation Role for Low Vision Children

应用眼科视功能检查最新方法对盲校84名低视力患者对比敏感度测定显示54．76％具有不同程度的对比度的功能损害。其中视网膜色素变性、现神经萎缩和白化病患者阳性率分别为100％、83．33％和66．67％，具有明显特异性。提出该项机功能的正确评估对指导机残儿童迅速有效康复具有重要和实用价值。

Examination of contrast sensitivity in 84 low vision children was performed using low contrast chart. The results showed 54. 76 % (48/84) cases had abnormal contrast sensitivity. Obvious speciticity was found in retinal pigmentosia, optic atrophy etc. with the positive rate being 100%, 88. 3% respectively.It was suggested that the correct evaluation of contrast sensitivity plays an important role for fow vision chil dren rehabilitation.