角膜地形图对近视散光眼的评价作用  

The role of corneal topography in the evaluation of myopic astigmatism

作　　者：张士胜[1] 周德佑[1] 邓伟[1] 廉井财[1] 王康孙[1] 

机构地区：[1]上海第二医科大学附属瑞金医院眼科中心,200025

出　　处：《眼科研究》2001年第4期335-337,共3页Chinese Ophthalmic Research

摘　　要：目的　探讨角膜地形图对近视散光眼的评价作用。方法　　对３１２例５８２只近视散光眼进行角膜地形图检查和检影验光，对所得散光度数、散光轴位及视力进行统计分析。结果　　两种方法所得散光度数差别≤０．２５ Ｄ和≤０．５０ Ｄ者分别占５８．５９％、８４．１９％；轴位差别≤５°和≤ １０°者分别为５４．８１％、７５．４３％；有３６７眼（６３．０６％）潜视力值（ＰＶＡ）与最佳矫正视力（ＢＣＶＡ）相符。结论　角膜地形图可对近视散光眼的散光度数、轴位及视力作出大致评价。验光前检查角膜地形图，将有助于提高验光的速度和准确度。Objective To assess the role of computer-assisted corneal topography on the evaluation of myopic astigmatism. Methods 582 eyes of 312 cases with myopic astigmatism were examined by corneal topography and retinophotoscopy. The relationship among astigmatic diopters, astigmatisic axes,and visual acuities from two methods were analyzed. Results The difference of astigmatic power were ≤0. 25 D and ≤0. 50 D in 58. 59% and 84. 19% of the eyes,and the difference of astigmatic axes were≤ 5° and≤ 10° in 54. 81 % and 75. 43% of the eyes, respectively. The potential visual acuities(PVAs) obtained from topography were consistent with the best-corrected visual acuities(BCVAs) in 367 eyes(63. 06% ). Conclusion The astigmatic diopters,astigmatisic axes, and visual acuities can be evaluated through corneal topography to a great content, and the topographic examination before retinophotoscopy will help to increase velocity and accuracy of the latter.

关 键 词：角膜地形图 检影验光 散光 近视 

分 类 号：R778.11[医药卫生—眼科]