Biomechanical characteristics of the ectatic cornea

被引：92

作者：

Kerautret, Julien ^{[1
]}

Colin, Joseph ^{[1
]}

Touboul, David ^{[1
]}

Roberts, Cynthia ^{[2
,3
]}

机构：

[1] Bordeaux Hosp, Dept Ophthalmol, Bordeaux, France

[2] Ohio State Univ, Dept Ophthalmol, Columbus, OH 43210 USA

[3] Ohio State Univ, Dept Biomed Engn, Columbus, OH 43210 USA

来源：

JOURNAL OF CATARACT AND REFRACTIVE SURGERY | 2008年 / 34卷 / 03期

关键词：

D O I：

10.1016/j.jcrs.2007.11.018

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

The ocular response analyzer (ORA) (Reichert, Inc.) was used in the case of a middle-aged man who developed unilateral corneal ectasia after bilateral laser in situ keratomileusis (LASIK). The preoperative refraction was similar in the 2 eyes. Post-LASIK ectasia was central in the left eye; topography was oblate in the right eye. The ORA values consisted of the mean of 4 measurements. Corneal hysteresis and corneal resistance factor were almost equal in the ectatic eye and the nonectatic eye. However, significant between-eye differences in the morphology of the signals were noted, most prominently in the lower amplitude of the applanation peaks in the ectatic eye. The shape of the applanation signal yielded important information in addition to corneal hysteresis and corneal resistance factor.

引用

页码：510 / 513

页数：4

共 5 条

[1] Ectasia after laser in situ keratomileusis [J].