Identify the Relationships Between Orthokeratology Lens Decentration and Myopia Control Efficacy in Children by Using Pentacam.

IF 2.2 4区医学 Q2 OPHTHALMOLOGY

Eye & Contact Lens-Science and Clinical Practice Pub Date : 2026-07-01 Epub Date: 2026-05-28 DOI:10.1097/ICL.0000000000001262

Yu-Kai Kuo, Lan-Hsin Chuang, Hung-Chi Chen, Ling Yeung, Ho-Min Chen, Jui-Yen Lin, Yih-Shiou Hwang, Chi-Chun Lai, Chun-Fu Liu

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引用次数: 0

Abstract

Purpose: To determine orthokeratology (ortho-k) lens decentration and its relationships with annual axial length (AL) changes in children treated with ortho-k.

Methods: This retrospective study included children aged 9 to 15 years treated with ortho-k for at least 1 year. Lens decentration was measured using Pentacam based on the relative positions of the corneal thinnest point, pupil center, and visual center. Annual AL change was analyzed using regression models adjusted for age and target power.

Results: In total, 71 eyes from 37 patients (mean age, 10.9 years) were included in the final analysis. The mean follow-up time was 35.0 months. The mean annual AL change was 0.11 mm. According to the customized formula based on the pupil or visual center, greater horizontal and vertical vectors and a larger total distance of decentration were associated with less annual AL change.

Conclusion: Greater temporal and inferior vectors, as well as a larger total distance of decentration, are associated with greater myopia control efficacy. These findings will help to facilitate the prescription and future design of ortho-k lenses to improve myopia control efficacy.

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Pentacam治疗儿童角膜塑形镜晶状体离体与近视控制效果的关系

目的：探讨儿童角膜塑形术（orthok -k）晶状体离体及其与年轴长（AL）变化的关系。方法：本回顾性研究纳入9至15岁儿童，接受矫形矫形治疗至少1年。基于角膜最薄点、瞳孔中心和视觉中心的相对位置，使用Pentacam测量晶状体离心。使用年龄和目标功率调整后的回归模型分析年度AL变化。结果：共纳入37例患者71只眼，平均年龄10.9岁。平均随访时间为35.0个月。年平均AL变化为0.11 mm。根据基于瞳孔或视中心的自定义公式，水平矢量和垂直矢量越大，分散总距离越大，AL年变化越小。结论：颞、下视矢量越大，离瞳总距离越大，近视控制效果越好。这些研究结果将有助于进一步完善k形眼镜的处方和设计，以提高近视控制效果。

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.