临床眼科杂志2026，Vol.34Issue(1)：12-16,5.DOI:10.3969/j.issn.1006-8422.2026.01.004
Pentacam系统K值在角膜正常的白内障患者人工晶状体屈光力计算中的研究
Assessments of Scheimpflug photography keratometry readings for intraocular lens power calculation in rou-tine cataract surgery
摘要
Abstract
Objective To evaluate keratometry(K)readings obtained with Pentacam and intraocular lenses(IOL)Master in eyes scheduled for cataract surgery,and to compare the predicted and actual refractive outcomes.Methods Pro-spective study.52 eyes of 38 cataract patients having phacoemulsification and in-the-bag IOL implantation were studied.Before the operation,Pentacam and IOL Master were used to measure corneal refractive power,respectively.And the col-lected data included:Sim K,equivalent K reading(EKR)at 1.0 to 7.0 mm of corneal diameters,True net power(TNP)were measured by Pentacam system and Km measured by IOL master.The IOL power was calculated using 4 formulas.Sta-tistical analysis of refractive outcomes was performed.Results The Km gave the lowest mean absolute error(MAE)with all formulas.The second lowest MAE was the Sim K by the Pentacam.The highest MAE was the Scheimpflug equivalent K at 7.0 mm.Among the equivalent K at 1.0～7.0 mm corneal diameters,equivalent K at 3.0 mm gave the lowest MAE.Con-clusions In cataract patients with normal corneal morphology,the K value measured by Pentacam can not improve the ac-curacy of IOL refractive power calculation compared with Km value measured by IOL Master.关键词
Pentacam眼前节全景仪/IOL Master屈光测量仪/角膜屈光力/人工晶状体/白内障Key words
Pentacam/IOL Master/Corneal power/Intraocular lens/Cataract引用本文复制引用
曹建雄,龙婷婷,谢梅芬,孙哲,周卫华,廖熙晴,易佳胜,曾玲芝..Pentacam系统K值在角膜正常的白内障患者人工晶状体屈光力计算中的研究[J].临床眼科杂志,2026,34(1):12-16,5.基金项目
湖南省卫健委项目(20201257) （20201257）
湖南省教育科学规划课题(ND212576) （ND212576）
