屈光不正引起视力下降最实用的方法是配戴眼镜。由于普通眼镜有三棱镜作用和放大、缩小等副作用,对高度屈光不正,屈光参差过大,角膜不规则散光等矫正不理想。角膜接触镜的应用,是矫正屈光一重要进展。随着制造材料与工艺的不断改革、国内亦生产出硬质与软质两种角膜接触镜,应用日益广泛,逐渐受到欢迎。我科自1984年开始使用国产角膜接触镜(硬镜、软镜)矫正各种类型屈光异常,共计653人,1239眼,现将资料整理,分析如下:角膜接触镜系北京六○八厂生产,硬镜材料为甲基丙烯酸甲酯(PMMA)软镜为聚甲基丙烯酸羟乙酯(HEMA),含水量 Ameliorated vision loss caused by the most practical way is to wear glasses. As a result of ordinary prism prism and enlargement, reduction and other side effects, a high degree of refractive error, anisometropia is too large, corneal irregular astigmatism correction is not satisfactory. The application of contact lenses, refractive correction is an important progress. With the continuous reform of manufacturing materials and processes, both domestic and overseas hard and soft contact lenses have also been produced. The applications are increasingly widespread and are gradually gaining popularity. Our department since 1984 using domestic contact lens (hard mirror, soft mirror) to correct various types of refractive errors, a total of 653 people, 1239 eyes, now the data are collated as follows: Department of contact lenses Beijing 608 Factory Production, hard mirror material for the methyl methacrylate (PMMA) soft mirror is polyhydroxyethyl methacrylate (HEMA), water content