Refractive and Topographical Analyses After Wavefront-Optimized Photorefractive Keratectomy With 75% Angle Kappa Compensation for Myopia.

IF 2.1 4区医学 Q2 OPHTHALMOLOGY

Eye & Contact Lens-Science and Clinical Practice Pub Date : 2025-10-02 DOI:10.1097/ICL.0000000000001226

Burak Tanriverdi, Nurullah Cagil

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Abstract

Objective: To evaluate refractive and topographic outcomes following photorefractive keratectomy (PRK) with 75% angle kappa (P-Dist) compensation in myopic eyes.

Methods: This retrospective study included 127 right eyes of patients with myopia and/or myopic astigmatism, who underwent wavefront-optimized PRK, incorporating 75% P-Dist compensation. Visual, refractive, topographic, aberrometric, and point-spread function (PSF) measurements were recorded preoperatively and at 1, 3, and 6 months postoperatively.

Results: The mean P-Dist was 232.13±121.78 μm (range: 31.69-769.84 μm). Eyes were grouped by mean P-Dist: group-1 (<232.13 μm, small-angle kappa, n=67) and group-2 (>232.13 μm, large-angle kappa, n=60). Preoperative P-Dist correlated with root-mean-square of higher-order aberrations (RMS-HOAs) (r=0.24, P=0.01) and coma (r=0.381, P<0.001). Group-2 had higher preoperative coma (P=0.001). At 6 months, the percentage of eyes within ±0.50 diopters (D) spherical equivalent and≤0.50 D astigmatism, visual acuity, asphericity, mean pupil power, HOAs, and PSF were similar between the groups (P>0.05 for all). No correlation was found between preoperative P-Dist and postoperative HOAs or PSF changes (P>0.05 for all).

Conclusions: PRK with 75% angle kappa compensation yields comparable refractive and topographical outcomes in myopic eyes with small- and large-angle kappa. In eyes with a significant angle kappa, aligning ablation with P-Dist may not induce additional corneal refractive or topographical changes.

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75%角Kappa补偿的波前优化光屈光性角膜切除术治疗近视后的屈光和地形分析。

目的：评价75%角kappa （P-Dist）补偿的近视光屈光性角膜切除术（PRK）的屈光性和地形学效果。方法：回顾性研究127例右眼近视和/或近视散光患者，采用波前优化PRK， 75% p区补偿。术前、术后1、3、6个月分别记录视力、屈光、地形、像差和点扩散函数（PSF）测量。结果：平均P-Dist为232.13±121.78 μm（范围31.69 ~ 769.84 μm）。按平均P-Dist分组：1组（232.13 μm，大角度kappa， n=60）。术前P- dist与高阶像差均方根（RMS-HOAs）（r=0.24， P=0.01）和昏迷（r=0.381，均P0.05）相关。术前P- dist与术后hoa、PSF变化无相关性（P < 0.05）。结论：75%角度kappa补偿的PRK对小角度kappa和大角度kappa近视的屈光和地形效果相当。在kappa角较大的眼睛中，对准P-Dist消融可能不会引起额外的角膜屈光或地形变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Eye & Contact Lens-Science and Clinical Practice OPHTHALMOLOGY-

CiteScore

4.50

自引率

4.30%

发文量

150

审稿时长

6-12 weeks

期刊介绍： Eye & Contact Lens: Science and Clinical Practice is the official journal of the Contact Lens Association of Ophthalmologists (CLAO), an international educational association for anterior segment research and clinical practice of interest to ophthalmologists, optometrists, and other vision care providers and researchers. Focusing especially on contact lenses, it also covers dry eye disease, MGD, infections, toxicity of drops and contact lens care solutions, topography, cornea surgery and post-operative care, optics, refractive surgery and corneal stability (eg, UV cross-linking). Peer-reviewed and published six times annually, it is a highly respected scientific journal in its field.