临床眼科杂志2016，Vol.24Issue(6)：510-513,4.DOI:10.3969/j.issn.1006-8422.2016.06.010
中老年白内障患者中角膜高阶波前像差与眼轴长度相关性变化
Correlations between higher-order corneal wavefront aberration and axial length in middle aged and elderly Chinese population
摘要
Abstract
Objective To investigate the relationship between higher-order corneal wavefront aberrations with dif-ferent axial length in middle aged and elderly Chinese population,and to help aspheric intraocular lens choice based on these information. Methods This was a prospective clinical study. We analyzed 319 eyes from patients without corneal diseases. Average astigmatism was less than 1. 00 D. Patients were divided into three groups based on axial length (AL):short AL (group 1),normal AL (group 2),and long AL (group 3). Corneal aberrations were measured with iTrace. Axi-al length was measured with IOL master. Higher-order aberrations,coma,spherical and trefoil aberrations were compared among the three groups over 6 mm areas. Results Average total higher-order aberration was only significantly different be-tween the group 2 and 3 (u = - 3. 185,P = 0. 001). Significant differences in coma aberration and trefoil aberration were observed among three groups (F = 12. 321,F = 20. 515;both P < 0. 01). There was no difference in spherical aberration (F = 0. 911,P = 0. 403). Conclusion These results suggested that the total higher-order aberrations,coma aberration and trefoil aberration increase with axial length,especially in the patients with axis length of more than 25 mm. Variability in corneal spherical aberration was common. Therefore,precise measurement of spherical aberration before surgery is cruci-al for the selection of aspheric intraocular lens.关键词
高阶像差/角膜/眼轴长度/白内障Key words
Higher-order wavefront aberration/Corneal/Axial length引用本文复制引用
周龚莉,王勇..中老年白内障患者中角膜高阶波前像差与眼轴长度相关性变化[J].临床眼科杂志,2016,24(6):510-513,4.
