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首页> 外文期刊>Journal of cataract and refractive surgery >Wavefront-optimized excimer laser in situ keratomileusis for myopia and myopic astigmatism: Refractive outcomes and corneal densitometry
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Wavefront-optimized excimer laser in situ keratomileusis for myopia and myopic astigmatism: Refractive outcomes and corneal densitometry

机译：波前优化的准分子激光原位角膜磨镶术用于近视和近视散光：屈光结果和角膜密度计

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Purpose: To determine the refractive outcomes of wavefront-optimized laser in situ keratomileusis (LASIK) treatments, in particular to measure corneal densitometry after LASIK using the densitometry function of the Pentacam Scheimpflug system. Setting: Division of Ophthalmology and Visual Sciences, University of Nottingham, United Kingdom. Design: Cohort study. Methods: Changes in postoperative visual acuity, refraction, and contrast sensitivity were evaluated after wavefront-optimized laser treatment. Corneal densitometry was evaluated with the Scheimpflug system before and after LASIK. Results: One year postoperatively, the uncorrected distance visual acuity was 6/6 or better in 92% of eyes and 6/9 or better in all eyes. Eighty-six percent of eyes had no change in the corrected distance visual acuity (CDVA); 4% gained 1 or more lines. Wavefront-optimized LASIK was stable over 1 year postoperatively. Eighty-nine percent of eyes were within ±0.50 diopter (D) and 100% were within ±1.00 D of the intended correction 1 year postoperatively. Contrast sensitivity showed a nonsignificant improvement (1.55 ± 0.10 [SD] preoperatively to 1.57 ± 0.09 12 months postoperatively) (P >.05). There was a nonsignificant increase in corneal densitometry 1 year postoperatively (from 12.72 ± 2.43 to 13.04 ± 2.58) (P >.05). No correlation was found between corneal densitometry and contrast sensitivity or CDVA. Conclusions: Wavefront-optimized LASIK gave excellent refractive and visual outcomes and did not seem to affect corneal densitometry significantly 1 year postoperatively. However, larger studies may show a masked effect on corneal densitometry. Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.
机译：目的：确定波前优化的激光原位角膜磨镶术（LASIK）治疗的屈光结果，特别是使用Pentacam Scheimpflug系统的光密度测定功能来测量LASIK后的角膜光密度测定。地点：英国诺丁汉大学眼科和视觉科学系。设计：队列研究。方法：对波前优化的激光治疗后，评估术后视力，折射和对比敏感度的变化。 LASIK术前和术后用Scheimpflug系统评估角膜密度。结果：术后一年，未矫正的远视力在92％的眼睛中为6/6或更高，在所有眼睛中为6/9或更高。 86％的眼睛的矫正远视力（CDVA）没有变化; 4％的人获得1条或更多条线。经过波前优化的LASIK术后1年稳定。术后1年内，有89％的眼睛在预期矫正度的±0.50屈光度（D）内，而100％的眼睛在±1.00 D的屈光度内。对比敏感性显示无显着改善（术前1.55±0.10 [SD]至术后12个月1.57±0.09 [P] .05）。术后1年角膜密度测定无显着增加（从12.72±2.43增加到13.04±2.58）（P> 0.05）。在角膜密度测定法和对比敏感度或CDVA之间未发现相关性。结论：经过波前优化的LASIK可以提供出色的屈光和视觉效果，并且似乎在术后1年内不会显着影响角膜密度。但是，较大的研究可能显示对角膜光密度法的掩盖作用。财务披露：没有任何作者对所提及的任何材料或方法有财务或专有利益。

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