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目的 分析研究摄影验光法对有关弱视致病因素阳性诊断的敏感度和特异度 ,探讨其在弱视普查中的作用。方法 用美国MTI照相筛查仪对 91例 3～ 6岁儿童进行摄影验光 ,随后进行临床眼科检查和阿托品散瞳验光。针对屈光不正、屈光参差、斜视等主要弱视致病因素拟定观测指标及相应的照片量化分析标准和临床诊断标准 ,应用标准分析法进行评价。结果 照片普查的敏感度为70 37% ,特异度为 6 2 1 6 % ,符合率为 6 7 0 3%。结论 摄影验光法方便、客观 ,对发现有关弱视致病因素有一定的准确性 ,是学龄前儿童弱视普查的有效手段
Objective To analyze the sensitivity and specificity of photographic optometry in the positive diagnosis of pathogenic factors related to amblyopia, and to explore its role in the screening of amblyopia. Methods Ninety-one children aged 3 to 6 years old were examined by American MTI photogrammetry, followed by clinical eye examination and atropine mydriasis. Aiming at ametropia, anisometropia, strabismus and other major amblyopia risk factors to develop observational indicators and corresponding quantitative analysis of photos and clinical diagnostic criteria, the use of standard analysis method for evaluation. Results The sensitivity of the photo census was 70 37%, the specificity was 6 2 1 6%, and the coincidence rate was 6 70.3%. Conclusion Photographic refraction method is convenient and objective, and has certain accuracy in detecting the pathogenic factors related to amblyopia. It is an effective means of presbyopic screening in preschool children