小切口微透镜取出术与准分子激光原位角膜磨镶术矫正高度（≥3 屈光度）散光的向量分析。
Vector analysis of high (≥3 diopters) astigmatism correction using small-incision lenticule extraction and laser in situ keratomileusis.
机构信息
From the Department of Ophthalmology and Visual Sciences (Chan, Jhanji), Chinese University of Hong Kong, the Department of Ophthalmology (Chan, Ng), University of Hong Kong, the Department of Mathematics and Statistics (Yu), Hang Seng Management College, and the Hong Kong Laser Eye Center (Cheng), Hong Kong; Tianjin Eye Hospital and Eye Institute (Wang, Zhang), Tianjin, China; the University of Pittsburgh Medical Center (Jhanji), University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
From the Department of Ophthalmology and Visual Sciences (Chan, Jhanji), Chinese University of Hong Kong, the Department of Ophthalmology (Chan, Ng), University of Hong Kong, the Department of Mathematics and Statistics (Yu), Hang Seng Management College, and the Hong Kong Laser Eye Center (Cheng), Hong Kong; Tianjin Eye Hospital and Eye Institute (Wang, Zhang), Tianjin, China; the University of Pittsburgh Medical Center (Jhanji), University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
出版信息
J Cataract Refract Surg. 2018 Jul;44(7):802-810. doi: 10.1016/j.jcrs.2018.04.038. Epub 2018 Jun 13.
PURPOSE
To compare the astigmatic correction in high myopic astigmatism between small-incision lenticule extraction and laser in situ keratomileusis (LASIK) using vector analysis.
SETTING
Hong Kong Laser Eye Center, Hong Kong.
DESIGN
Retrospective case series.
METHODS
Patients who had correction of myopic astigmatism of 3.0 diopters (D) or more and had either small-incision lenticule extraction or femtosecond laser-assisted LASIK were included. Only the left eye was included for analysis. Visual and refractive results were presented and compared between groups.
RESULTS
The study comprised 105 patients (40 eyes in the small-incision lenticule extraction group and 65 eyes in the femtosecond laser-assisted LASIK group.) The mean preoperative manifest cylinder was -3.42 D ± 0.55 (SD) in the small-incision lenticule extraction group and -3.47 ± 0.49 D in the LASIK group (P = .655). At 3 months, there was no significant between-group difference in uncorrected distance visual acuity (P = .915) and manifest spherical equivalent (P = .145). Ninety percent and 95.4% of eyes were within ± 0.5 D of the attempted cylindrical correction for the small-incision lenticule extraction and LASIK group, respectively (P = .423). Vector analysis showed comparable target-induced astigmatism (P = .709), surgically induced astigmatism vector (P = .449), difference vector (P = .335), and magnitude of error (P = .413) between groups. The absolute angle of error was 1.88 ± 2.25 degrees in the small-incision lenticule extraction group and 1.37 ± 1.58 degrees in the LASIK group (P = .217).
CONCLUSION
Small-incision lenticule extraction offered astigmatic correction comparable to LASIK in eyes with high myopic astigmatism.
目的
通过向量分析比较小切口微透镜取出术和准分子激光原位角膜磨镶术（LASIK）治疗高度近视散光的散光矫正效果。
设置
中国香港激光眼科中心。
设计
回顾性病例系列。
方法
纳入接受 3.0 屈光度（D）或以上近视散光矫正且接受小切口微透镜取出术或飞秒激光辅助 LASIK 的患者。仅对左眼进行分析。比较两组的视力和屈光结果。
结果
研究共纳入 105 例患者（小切口微透镜取出术组 40 眼，飞秒激光辅助 LASIK 组 65 眼）。小切口微透镜取出术组平均术前角膜散光为-3.42 D ± 0.55（SD），LASIK 组为-3.47 ± 0.49 D（P =.655）。术后 3 个月，两组未矫正远视力（P =.915）和角膜散光等效球镜（P =.145）无显著差异。小切口微透镜取出术组和 LASIK 组分别有 90%和 95.4%的眼在尝试矫正的角膜散光范围内（P =.423）。向量分析显示两组目标诱导散光（P =.709）、手术诱导散光向量（P =.449）、差异向量（P =.335）和误差幅度（P =.413）相似。小切口微透镜取出术组的绝对误差角为 1.88 ± 2.25 度，LASIK 组为 1.37 ± 1.58 度（P =.217）。
结论
小切口微透镜取出术在治疗高度近视散光眼时可提供与 LASIK 相当的散光矫正效果。
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