CAJ | 학술논문

目的分析白内障患者手术眼角膜散光的分布以及随年龄的变化情况.方法测量白内障患者手术眼角膜水平轴和垂直轴的屈光度,计算角膜散光,对散光的分布进行统计分析.结果 4753只眼中,1502(31.6%)只眼无角膜散光;1816(38.2%)只眼角膜散光小于等于0.5D;1336(28.1%)只眼大于0.5D小于等于2.0D;99(2.1%)只眼大于2.0D.平均角膜散光(0.81±0.50)D.随着年龄增大,水平轴的角膜屈光度增加(P＜0.05),逆规性散光在角膜散光中所占比例增大(P＜0.05).结论 30.1%的白内障手术眼角膜散光在0.5D以上.随着年龄增长水平轴的角膜屈光度增加,角膜散光由顺规性散光向逆规性散光转变.
목적 분석백내장환자수술안각막산광적분포이급수년령적변화정황.방법 측량백내장환자수술안각막수평축화수직축적굴광도,계산각막산광,대산광적분포진행통계분석.결과 4753지안중,1502(31.6%)지안무각막산광;1816(38.2%)지안각막산광소우등우0.5D;1336(28.1%)지안대우0.5D소우등우2.0D;99(2.1%)지안대우2.0D.평균각막산광(0.81±0.50)D.수착년령증대,수평축적각막굴광도증가(P＜0.05),역규성산광재각막산광중소점비례증대(P＜0.05).결론 30.1%적백내장수술안각막산광재0.5D이상.수착년령증장수평축적각막굴광도증가,각막산광유순규성산광향역규성산광전변.
Objective To analyze the prevalence and presentation of corneal astigmatism in cataract surgery. Methods Keratometric value were measured before surgery in patients having cataract extraction. Descriptive statistics of keratometric cylinder data were analyzed and correlated by age .rangs. Results In 1502 (31.6%) eyes, no corneal astigmatism was present; in 1816 (38.2%) eyes , corneal astigmatism was 0.5 diopters(D) or below; in 1336 (28.1% ) eyes, corneal astigmatism was between 0.5 and 2.0 diopters and in 99 (2.1%) eyes, it was more than 2.0 diopters .Both the refractive power at horizontal meridians and the prevalence of "against the rule" astigmatism increased with age (p＜0.05). Conclusions The prevalence of corneal astigmatism more than 0.5D was in 30.1%. The refractive power at horizontal meridians increase and corneal astigmatism changes from with the rule to against the rule with age.