军医进修学院学报2012，Vol.33Issue(8)：831-832,872,3.DOI:10.3969/j.issn.1005-1139.2012.08.013
Q 值调整准分子激光近视手术后角膜前后表面Q 值变化
Changes in Q factor value of corneal anterior and posterior surface after Q-factor guided LASIK
摘要
Abstract
Objective To analyze the effect of Q-factor guided LASIK on Q factor value of the corneal anterior and posterior surface. Methods Twenty-three patients(46 eyes), admitted to our hospital for LASIK from May 2009 to January 2011, were divided into observation group and control group according to their dominant visual acuity eyes. Their non- dominant visual acuity eye underwent LASIK with the target Q-factor value set at 0.6 -1.0. The Q factor of the corneal anterior and posterior surface in all eyes, examined with Pentecam method, was analyzed. Results No significant difference was found in Q factor value of the anterior and posterior corneal surface between the two groups before operation. The Q20, Q25,and Q30 value of the anterior corneal surface was 0.14, 0.14 and 0.06 respectively in observation group and 0.27, 0.28 and 0.20 respectively in control group after operation (P<0.01). However, no significant difference was found in Q35 and Q40 factor value of the anterior corneal surface between the two group after operation(P>0.05). Conclusion The Q factor value is lower after Q-factor-guided LASIK than after common LASIK. Q-factor guided LASIK can reconstruct the corneal aspheric surface and improve the visual acuity of presbyopic subjects.关键词
角膜/Q值/准分子激光原位角膜磨镶术Key words
cornea/ Q factor/ LASIK分类
临床医学引用本文复制引用
葛梅,王瑛,杜改萍,邢晓娟,李文娟,牛丽丽,吕艳华,黄一飞..Q 值调整准分子激光近视手术后角膜前后表面Q 值变化[J].军医进修学院学报,2012,33(8):831-832,872,3.基金项目
国家自然科学基金项目(81170830) （81170830）
