角膜总屈光力的评估方法及其临床应用进展  

Assessment of total corneal power and its clinical application

作　　者：华焱军[1] 王勤美[2] 黄锦海[2] 

机构地区：[1]上海交通大学附属第六人民医院眼科,200233 [2]温州医科大学附属眼视光医院,325027

出　　处：《国际眼科纵览》2014年第4期245-250,共6页International Review of Ophthalmology

摘　　要：角膜总屈光力的评估在角膜接触镜的验配和角膜屈光手术的术前评估中至关重要.测算角膜总屈光力的设备多种多样.根据测算原理的不同,角膜总屈光力大致可分为3类：模拟角膜屈光力、基于高斯厚透镜公式的角膜总屈光力和光路追击法获得的角膜总屈光力.角膜屈光术后角膜总屈光力的准确评估在提高预测拟植入人工晶状体屈光力的准确性中起关键作用.目前,对于角膜屈光术后角膜总屈光力的评估缺乏统一标准,很多学者根据各自的研究提出了不同的修正公式.本文着重综述角膜总屈光力尤其是角膜屈光术后眼角膜总屈光力的评估方法及其研究应用进展.Assessment of total corneal power is essential for contact lens fitting and preoperative evaluation of corneal refractive surgery.There were many kinds of devices for total corneal power measurements.According to different measuring principles,total corneal power obtained by all kinds of devices can be divided into 3 categories：simulated keratometry （SimK）,total corneal power based on Gaussian optic formula （KGOF） and total corneal power obtained by ray tracing method （Kray）.Accurate assessment of total corneal power plays an important role in the prediction of intraocular lens power in eyes after corneal refractive surgery.Currently,there is no uniform standard for the assessment of total corneal power in eyes after corneal refractive surgery.Many scholars proposed their own formulas according to their studies.This review focuses on the total corneal refractive power,especially total corneal power in eyes after corneal refractive surgery and its progress in research and application,providing reference for ophthalmologists in clinic.

关 键 词：角膜屈光力 角膜屈光手术 高斯厚透镜公式 人工晶状体屈光力 

分 类 号：R779.6[医药卫生—眼科]