Laser in situ keratomileusis for astigmatism ≤ 0.75 diopter combined with low myopia: a retrospective data analysis.
Laser in situ keratomileusis for astigmatism ≤ 0.75 diopter combined with low myopia: a retrospective data analysis.
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DOI：
10.1186/1471-2415-14-1
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发表时间：
2014-01-06
影响因子：
2
通讯作者：
Steinberg J
中科院分区：
文献类型：
--
作者：
Katz T;Frings A;Linke SJ;Richard G;Druchkiv V;Steinberg J
本研究观察了波前优化的准分子激光原位角膜磨镶术对低度近视和复合性近视散光患者 ≤ 0.75屈光度(D)的屈光度和视力的影响。连续近视患者153例(男74例，女79例；术中平均年龄40.4 ± 10.4岁)，术前屈光度 ≤ 0.75D，显性球镜-0.25D~-2.75D，完成4个月随访。根据术前显性屈光度的大小(0.25、0.50和0.75D)形成三个亚组。分别于术前、术后进行明显屈光状态、裸眼视力和矫正视力的评估。通过Alpins向量分析确定散光变化。术后随访4个月(120.0 ± 27.6天)，平均裸眼远视力为0.07 ± 0.11logMAR，平均明显屈光度为-0.06 ± 0.56D。术前气瓶组在疗效和安全性方面无统计学差异。根据矫正指数、误差大小、成功指数和平坦度指数，对 ≤ 0.50D圆柱体进行了术前散光过矫术。与低度近视 ≤ 联合使用时，术前屈光度为0.50D的低度近视眼在屈光度矫正方面存在明显的过度矫正。因此，对于 ≤ 为0.50D的低度近视患者，我们在推荐完全散光矫正时持谨慎态度。
This study examined the refractive and visual outcome of wavefront-optimized laser in situ keratomileusis (LASIK) in eyes with low myopia and compound myopic astigmatism ≤ 0.75 diopter (D). 153 eyes from 153 consecutive myopic patients (74 male, 79 female; mean age at surgery 40.4 ± 10.4 years) who had a preoperative refractive cylinder ≤ 0.75 D and a manifest sphere between -0.25 D and -2.75 D, and who had completed 4-month follow-up. Three subgroups defined by the magnitude of preoperative manifest refractive cylinder (0.25, 0.50, and 0.75 D) were formed. Manifest refraction, uncorrected and corrected visual acuity were assessed pre- and postoperatively. The astigmatic changes achieved were determined using the Alpins vector analysis. After 4 months (120.0 ± 27.6 days) of follow-up, a mean uncorrected distant visual acuity of 0.07 ± 0.11 logMAR and a mean manifest refraction spherical equivalent of -0.06 ± 0.56 D were found. There was no statistically significant difference in efficacy and safety between the preoperative cylinder groups. Astigmatic overcorrection for preoperative cylinder of ≤ 0.50 D was suggested by the correction index, the magnitude of error, the index of success, and the flattening index. Low myopic eyes with a preoperative cylinder of ≤ 0.50 D were significantly overcorrected with regard to cylinder correction when combined with low myopic LASIK. Accordingly, we are cautious in recommending full astigmatic correction for eyes with low myopia and manifest cylinder of ≤ 0.50 D.
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影响因子：
2.8
作者：
Mrochen, M;Donitzky, C;Löffler, J
通讯作者：
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