年龄因素对角膜前表面高阶像差的影响  

Effect of aging on high order aberrations of the anterior cornea

作　　者：王娟[1,2] 汤欣[2] 张帅[1,2] 

机构地区：[1]天津医科大学眼科临床学院,天津300020 [2]天津市眼科医院

出　　处：《天津医科大学学报》2009年第1期136-138,共3页Journal of Tianjin Medical University

摘　　要：目的:探讨角膜前表面波前像差随年龄的变化。方法:前瞻性临床研究。使用Pentacam(Oculus,Germany)对90例180眼(从20～79岁分为6组,每组30眼,球镜-3.0～+3.0D,角膜散光<2.0D)测量角膜前表面6mm直径范围内的波前像差。分析对角膜前表面的高阶像差与年龄之间的相关性。结果:角膜前表面总高阶像差和慧差与年龄呈正相关(r=0.297和0.303,P<0.001);而球差与年龄无相关(r=0.087,P>0.05)。结论:随着年龄的增长,角膜前表面总高阶像差和慧差会增大,而球差无明显变化。Objective： To study the variations in anterior corneal aberrations with aging. Methods： It was a prospective clinical study. High order aberrations （HOAs） of the anterior cornea were measured using Pentacam （Oculus, Germany） on 180 eyes of 90 subjects （age range 20 to 79 years; 30 eyes in each decade; a manifest refractive sphere of-3.0 to ＋3.0 diopters （D） and a cylinder of〈2.0 D）.Root-mean-square （RMS） values of HOAs were obtained with 6 mm aperture. Correlation analysis was performed to assess the association between anterior corneal HOAs and age. Results： RMS of HOA and coma increased with aging （r=- 0.330,0.303 respectively, both P〈0.001）; SA RMS was not correlated with change in age （r = 0.087, P〉0.05）. Conclusion： HOA and coma of the anterior cornea increase with aging, but SA does not change with aging.

关 键 词：年龄 角膜 波前像差 球差 高阶像差 

分 类 号：R779.66[医药卫生—眼科] R194.3[医药卫生—临床医学]