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1989年对通化市东昌区八所大中专、小学及柳河县两所中学的学生所配戴的407付眼镜进行了调查。用对数视力表查视力,然后进行检影试镜。使用LQG—25型屈光仪,镜片测度表等,测镜片的屈光度、光学中心等。评价以《河南省眼镜卫生质量试行标准》为依据。结果:407付学生所配戴的眼镜中,眼镜与眼屈光度符合率40.29%;不符合的低矫率45.7%,过矫率达14.0%。有96眼散光中,只有58眼戴上了散光镜,但其中有23片散光度或散光轴向不符合,并查出17眼无
In 1989, Tongjia City, Dongchang District, eight colleges, primary and secondary schools in Liuhe County, two students were wearing 407 glasses to pay the survey. Visual acuity with a logarithmic visual acuity, and then retinoscopy. Use LQG-25-type refractometer, lens measuring table, measuring lens refraction, optical center and so on. Evaluation based on “Henan Province, the quality of glasses, the pilot health standards” as the basis. Results: Spectacles and eye refraction coincidence rate was 40.29% in glasses worn by 407 students; 45.7% of unmatched low correction rate and 14.0% of overcorrection rate. Of the 96 eyes with astigmatism, 58 were wearing astigmatism, but 23 had astigmatism or astigmatism in the axial direction, and 17 had no eye contact