1982年中央十个部委发出的文件中提出检查学生视力“可利用自然光线检查,在条件许可下应装置人工照明视力箱”。我们在调查中发现这两种不同的照度所取得的视力有差别,势必影响近视诊断。笔者于1982年度第二学期对某中学全校学生先用自然光线检查,筛选出远视力不足1.0而近视力又正常的学生,再用人工照明视力箱检查与主觉验光检查、小瞳检影检查。结果发现自然采光查出为正常视力学 In a document issued by the central government’s 10 ministries and commissions in 1982, students were asked to check their eyesight. “Natural light inspection is available, and artificial lighting eyesight boxes should be installed when conditions permit.” We found in the survey that these two different illumination have different visual acuity, which will inevitably affect myopia diagnosis. The author in the second semester of 1982, a school of high school students first with natural light examination, screening out less than 1.0 sight and near vision and normal students, and then artificial lighting, visual acuity box examination and the main optometry examination, pupil retinoscopy . The results showed that natural lighting was detected as normal vision