屈光手术后角膜地形图变化与临床屈光度的关系(附108眼高度近视比较分析)  

Corneal topography change and clinical refraction after refractive surgery

作　　者：胡隆基[1] 谢立信[1] 张新晨[1] 胡蔚 张立军[1] 崔彦[1] 

机构地区：[1]青岛山东省医学科学院眼科研究所,266071

出　　处：《眼外伤职业眼病杂志》1998年第1期17-18,共2页Journal of Injuries and Occupational Diseases of the Eye with Ophthalmic Surgeries

摘　　要：为探讨准分子激光角膜内成形术和显微角膜板层切除术后角膜地形图变化与临床屈光度及视力的关系，对58例108眼高度近视术前及术后6月行角膜地形图检查并与；临床屈光度行对比分析。术后裸眼视力与术前矫正视力相等及提高者88眼（81．48％），矫正视力与术前矫正视力相等及提高者100眼（92．60％），角膜地形图示潜在视力（PVA）明显下降，角膜屈光度下降数值明显低于临床屈光度。此结果可能因角膜屈光力变化幅度超过地形图仪软件的设定分析范围而与临床实际不符。Objective To evaluate the relation between corneal refractive change of topography and clinical refractive change after laser in situ keratomileusis and microlamellar keratectomy. Method For 108 eyes (58 cases) with high myopia, corneal topography was evlauated by TMS - 2 videopho- tokeratography and 6 months postoperatively.Compare with clinical refractive power and analyze Results The uncorrected visual acuity of 88 eyes(81 .48%) was wqual to or better than the preoperative corrected visual acuity. The corrected visual acuity was equal to or better than the preoperative corrected visual acuity in 100 eyes (92. 60%). But the postoperative potential visual acuity acuity (PVA) of corncal topography was significantly worsened. The corneal refractive reducement showed by wtopography was much less than the clinical refractive reducement Conclusions The change may exceed the limit of software of videophotokeratography So its refractive results and PVA may not tally with the clinical change

关 键 词：屈光手术 角膜地形图 屈光度 视力 

分 类 号：R779.6[医药卫生—眼科] R778.2[医药卫生—临床医学]