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首页> 外文期刊>Journal of refractive surgery >Topographic- and wavefront-guided customized ablations with the NIDEK-EC5000CXII in LASIK for myopia.
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Topographic- and wavefront-guided customized ablations with the NIDEK-EC5000CXII in LASIK for myopia.

机译：LASIK中的NIDEK-EC5000CXII用于近视眼的地形和波前引导定制消融。

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PURPOSE: To assess refractive outcomes, changes in the total higher order root mean square (RMS) aberration, and changes in higher order wavefront aberrations after LASIK for myopia and myopic astigmatism with the NIDEK Advanced Vision Excimer Laser platform (NAVEX) using either an aspheric or topography-based or whole eye wavefront ablation algorithm. METHODS: This was a retrospective study of 1459 eyes that underwent LASIK for myopia and myopic astigmatism. The mean preoperative spherical equivalent refraction was -4.68 diopters (D) (range: -0.50 to -9.63 D) with astigmatism up to -4.50 D. Treatments were classified into three categories depending on the type of ablation algorithm used--optimized aspheric transition zone (OATz) denoted eyes that underwent aspheric treatment zones; customized aspheric treatment zone (CATz) denoted eyes that underwent customized ablations based on corneal topography; and OPDCAT denoted eyes that underwent customized ablation based on the whole eye wavefront profile. Follow-up data are reported at 3 months (69%) and 12 months (17%) postoperatively. RESULTS: Three months after LASIK, the predictability (10.5 D from target refraction) was 80% for OATz, 91% for CATz, and 76% for OPDCAT. Of all eyes, 96% were within +/- 1.0 D of intended refraction 3 months postoperatively and 100% after 12 months (87% +/- 0.5 D). In the aspheric and custom groups, a notable improvement of uncorrected visual acuity was noted between 3 and 12 months after LASIK. No eye lost >1 line of best spectacle-corrected visual acuity. Mean higher order RMS increased in all groups. CONCLUSIONS: The data support that the treatment of myopia and myopic astigmatism is safe and effective with NAVEX. Customized ablation based on corneal topography rather than on total wavefront error was more predictable.
机译：目的：使用NIDEK Advanced Vision Excimer Laser Platform（NAVEX）使用非球面镜片评估近视和近视散光的LASIK术后屈光结果，总高阶均方根（RMS）像差的变化以及高阶波前像差的变化或基于地形的或全眼波前消融算法。方法：这是一项回顾性研究，对接受过LASIK手术的1459只眼睛进行了近视和近视散光治疗。术前平均等效球镜屈光度为-4.68屈光度（D）（范围：-0.50至-9.63 D），散光度最大为-4.50 D.根据消融算法的类型，治疗方法分为三类-优化的非球面过渡区域（OATz）表示接受非球面治疗区域的眼睛;定制的非球面治疗区（CATz）表示根据角膜地形图进行定制消融的眼睛; OPDCAT表示根据整个眼波前轮廓对眼睛进行了定制消融。术后3个月（69％）和12个月（17％）有随访数据。结果：LASIK术后三个月，OATz的可预测性（距目标折射10.5 D）为80％，CATz为91％，OPDCAT为76％。在所有眼中，术后3个月内有96％的患者处于预期屈光度的+/- 1.0 D之内，而在12个月后100％处于预期屈光度的范围内（87％+/- 0.5 D）。在非球面和习惯性组中，在LASIK术后3到12个月之间，未矫正的视敏度显着改善。最好的眼镜矫正视力不超过1行。平均高阶RMS在所有组中均增加。结论：数据支持NAVEX治疗近视和近视散光是安全有效的。基于角膜地形图而非总波前误差的定制消融更可预测。

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