波前像差引导下的近视 LASIK 中的金字塔像差测量

Pyramidal Aberrometry in Wavefront-Guided Myopic LASIK.

出版信息

J Refract Surg. 2020 Jul 1;36(7):442-448. doi: 10.3928/1081597X-20200519-03.

DOI:10.3928/1081597X-20200519-03

Abstract

PURPOSE

To evaluate measurement repeatability and clinical results for pyramidal aberrometry in routine myopic wavefront-guided laser in situ keratomileusis (LASIK).

METHODS

Results from 265 consecutive eyes treated with myopic wavefront-guided LASIK using the Amaris 1050RS Excimer Laser and Peramis pyramidal aberrometer (SCHWIND eye-tech-solutions GmbH) were reviewed. Limits of repeatability were calculated for the aberrometric refraction spherical equivalent and higher order aberrations for the Peramis aberrometer using results from three consecutive scans acquired preoperatively and postoperatively for the first 100 eyes treated.

RESULTS

The 95% limits of repeatability for pyramidal aberrometric measurement were: 0.3 diopters (D) for sphere, 0.2 D for cylinder, and 0.1 D (dioptric equivalent) for 3rd and 4th order aberration indices. A total of 95% of eyes were within ±0.50 D of the manifest refraction spherical equivalent target postoperatively. Uncorrected distance visual acuity was 20/20 or better in 96% of 232 eyes with a plano refraction target outcome. A total of 97% of eyes had a refraction cylinder of 0.50 D or less. No eyes lost one or more line of corrected distance visual acuity.

CONCLUSIONS

These data demonstrate good measurement repeatability, safety, and efficacy for pyramidal aberrometry in routine myopic LASIK. [J Refract Surg. 2020;36(7):442-448.].

摘要

目的

评估常规近视波前引导激光原位角膜磨镶术（LASIK）中金字塔像差测量的重复性和临床结果。

方法

回顾了 265 只连续眼接受近视波前引导 LASIK 的结果，使用阿玛仕 1050RS 准分子激光和 Peramis 金字塔像差仪（SCHWIND eye-tech-solutions GmbH）。使用前 100 只眼的连续 3 次术前和术后扫描结果，计算 Peramis 像差仪的屈光球镜等效和高阶像差的重复性测量极限。

结果

金字塔像差测量的 95%重复性极限为：球镜 0.3 屈光度（D），柱镜 0.2 D，3 阶和 4 阶像差指数 0.1 D（屈光度等效）。术后 95%的眼屈光度等效球镜值在±0.50 D 的目标值范围内。232 只接受 plano 屈光目标结果的眼中，96%的未矫正远视力达到 20/20 或更好。97%的眼的屈光度柱镜值为 0.50 D 或更低。无一例眼丧失一行或更多行矫正远视力。