[关键词]
[摘要]
目前，集合不足、基本型外隐斜、假性集合不足三种双眼视功能障碍引发的视疲劳在视光学门诊中较为常见，由于这三种视功能障碍的症状和体征相似，视光师如果仅对单纯的某个指标进行分析往往会造成误诊，因此在对此类患者进行鉴别诊断时，需要对患者的远近眼位、调节反应、AC/A、正/负相对调节等各个体征进行综合分析以准确诊断和归类。根据诊断结果，提供合适的配镜处方、训练方法以及日常生活建议，才能最好地缓解视力疲劳，维持正常双眼视功能。
[Key word]
[Abstract]
Convergence insufficiency, basic exophoria and pseudo convergence insufficiency are three common reason for visual dysfunction. It's difficult for optometrist to differential diagnosis because of the similar signs and symptoms. Comprehensive analysis of distance & near eye position, accommodation, AC/A ratio and negative/positive relative accommodation(NRA/PRA)may help optometrist to make an accurate diagnosis and treatment strategy, which may relax asthenopia and maintain normal binocular vision.
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[基金项目]
