摘要
目的比较pentacam系统与itrace视功能仪测量的中老年人角膜前表面高阶像差的差异，并对其影响因素做初步研究。方法前瞻性临床研究。对2010年11月至2011年4月在天津市眼科医院就诊病人分别应用pentacam系统及itrace像差仪测量中老年97例134只眼角膜前表面像差，按年龄及性别将患者分为4组，记录3mm及5mm瞳孔直径下的慧差、球差、三叶草像差的均方根（RMS）值。结果（1）3mm瞳孔直径下，两种仪器测量的中年女性组的慧差差异无统计学意义（P〉0．05）；而老年女性组三叶草像差pentacam的测量值大，两种仪器比较差异有统计学意义（P〈0.05）。（2）5mm瞳孔直径下，两种仪器测量的中年女性组的慧差、中年组及老年女性组的三叶草像差差异无统计学意义（P〉0.05）。（3）在各个瞳孔直径下，各个分组的球差值，老年人群及中年男性组的慧差值，老年男性组的三叶草像差值的结果均为Pentacam测量值大，两种仪器比较差异有统计学意义（P〈0．05）。iTrace检查结果显示：（1）各个分组的5mm瞳孔直径下的角膜像差值均较3mm瞳孔直径下的角膜像差值增加，差异有统计学意义（P〈0．05）。（2）各个分组的男性人群的像差值与女性人群像差值比较均无统计学意义（P〉0．05）。（3）3mm瞳孔直径下，中老年人的三叶草像差比较差异无统计学意义（P〉0.05）；5mm瞳孔直径下，老年人的三叶草像差较中年人高，差异有统计学意义（P〈0．05）；在不同瞳孔直径下，老年人的角膜慧差值均大于中年人的慧差值，差异有统计学意义（P〈0.05），而老年人与中年人球差比较差异无统计学意义（P〉0．05）。结论pentacam和itrace测量的中老年人的角膜高阶像差结果存在部分差异。瞳孔直径影响角膜高阶像差，瞳孔直径越大，角膜高阶像差越大。性别不是中老年人角膜高阶像
Objective To compare the difference of HOAs from the anterior surface of age related cataract patients＇ cornea measured by Pentacam system and Tracey wavefront aberrometer. The preliminary study of the factor that affects the cornea higher order aberration. Methods A prospective clinical research. A total of 134 eyes of 97 persons were enrolled in this study. According to the age and gender, they were divided into four groups. The root-mean-square （RMS） of spherical aberration （SA）, coma, and trefoil were measured with Pentacam and Tracey. Separately, all patients＇ cornea front surface aberration under 3ram pupil diameter and the 5mrn pupil diameter were recorded. Results The result of cornea front surface aberration measured with Pentacam and Tracey： Under 3ram pupil diameter, the difference of middle-aged females＇ coma was not statistically significant （P 〉0.05）; trefoil of elderly women group showed statistical differences between Pentacam and Tracey （P 〈0.05）. Under 5mm pupil diameter, the difference of the trefoil that older females and middle-aged people＇s was not statistically significant （P 〉0.05）, the difference of middle-aged females ＇ coma measured by Pentacam and Tracey was not statistically significant （P 〉0.05）. In any pupil diameter, spherical aberration of middle-aged and elderly people, coma of elderly people and middle-aged men, trefoil of older men showed statistical differences between Pentacam and Tracey （P 〈 0.05）. The result of iTrace instrument： The corneal aberration of every group under 5mm pupil di- ameter was higher than the corneal aberration of every group under 3mm pupil diameter and differ- ence was statistically significant （P 〈0.05）. Each group of men crowd＇s aberration and each group of women crowd＇s aberration＇s compare had non-statistics significance （P 〉0.05）. Under 3mm pupil diameter, the difference of trefoil between older people and middle-aged crowd was not statistically significant （P 〉0.05）. Und
出处
《中国实用眼科杂志》
CSCD
北大核心
2012年第4期411-415,共5页
Chinese Journal of Practical Ophthalmology
