Does the Difference in Axial Length Affect the Refractive Outcome?

IF 1.1 Q4 MEDICINE, RESEARCH & EXPERIMENTAL Malaysian Journal of Medical Sciences Pub Date : 2024-02-01 Epub Date: 2024-02-28 DOI:10.21315/mjms2024.31.1.6

Noor Amalina Saidi, Nur Syahirah Abdul Karim, Adawiyah Ismail, Raja Nor Farahiyah Raja Othman, Nor Higrayati Ahmad Kasah, Azhany Yaakub, Qi Zhe Ngoo

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Abstract

Background: The purpose of this study is to compare axial length (AL) and the refractive outcome after phacoemulsification surgery from 2014 to 2019 at Hospital Sultanah Nur Zahirah, Terengganu, Malaysia.

Method: This was a retrospective record review of all cataract patients who met the inclusion criteria and underwent uneventful superior wound phacoemulsification with nontoric intraocular lens (IOL) by a single surgeon from 2014 to 2019. Using optical biometry or immersion technique, the preoperative AL determined solely via the Sanders, Retzlaff and Kraff 2 (SRK2) formula was selected. The postoperative spherical equivalent (SE) at 6 weeks-12 weeks was retrieved. Using Statistical Package for the Social Sciences version 24.0, the mean differences between targeted and actual postoperative SE were analysed based on the AL.

Result: In this study, 490 eyes of 472 patients aged 25 years old-88 years old (mean age 65.72 years old [SD 8.83]) were involved. There were 162 eyes (33%) in Group A (< 23 mm), 189 eyes (39%) in Group B (23.01 mm-24.0 mm) and 139 eyes (28%) in Group C (> 24.0 mm). The mean AL was 23.63 mm (SD 1.19). The mean differences between the targeted and actual postoperative SE were: -0.09 D (SD 0.60) in Group A, -0.07 D (SD 0.53) in Group B and -0.16 D (SD 0.52) in Group C. No significant difference was found between these groups (P = 0.327).

Conclusion: There was no significant difference in the refractive outcome using the SRK2 formula in different ALs after phacoemulsification surgery. Hence, there is no reason to modify or adjust the targeted SE based on AL.

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轴向长度的差异会影响屈光结果吗？

背景：本研究旨在比较2014年至2019年马来西亚丁加奴苏丹努尔扎希拉医院白内障超声乳化手术后的轴向长度（AL）和屈光结果：这是对2014年至2019年期间所有符合纳入标准的白内障患者进行的回顾性记录审查，这些患者均接受了由一名外科医生实施的上伤口无晶体眼内人工晶体（IOL）超声乳化手术。采用光学生物测量或浸泡技术，仅通过 Sanders、Retzlaff 和 Kraff 2（SRK2）公式确定术前球面等值。术后 6 周至 12 周的球面等值（SE）被检索出来。使用社会科学统计软件包 24.0 版，根据 AL 分析了目标 SE 与术后实际 SE 之间的平均差异：本研究共涉及 472 名患者的 490 只眼睛，年龄从 25 岁到 88 岁（平均年龄 65.72 岁 [SD 8.83]）。A组（小于23毫米）162只眼睛（33%），B组（23.01毫米-24.0毫米）189只眼睛（39%），C组（大于24.0毫米）139只眼睛（28%）。平均 AL 值为 23.63 毫米（标清 1.19）。目标 SE 与术后实际 SE 之间的平均差异为A组为-0.09 D (SD 0.60)，B组为-0.07 D (SD 0.53)，C组为-0.16 D (SD 0.52)：结论：使用 SRK2 公式计算不同 AL 在乳化手术后的屈光结果无明显差异。结论：使用 SRK2 公式得出的屈光度结果在不同 AL 的超声乳化手术后没有明显差异，因此没有理由根据 AL 来修改或调整目标 SE。

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

Malaysian Journal of Medical Sciences MEDICINE, RESEARCH & EXPERIMENTAL-

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

9 weeks

期刊介绍： The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access, fully online journal that is published at least six times a year. The journal’s scope encompasses all aspects of medical sciences including biomedical, allied health, clinical and social sciences. We accept high quality papers from basic to translational research especially from low & middle income countries, as classified by the United Nations & World Bank (https://datahelpdesk.worldbank.org/knowledgebase/ articles/906519), with the aim that published research will benefit back the bottom billion population from these countries. Manuscripts submitted from developed or high income countries to MJMS must contain data and information that will benefit the socio-health and bio-medical sciences of these low and middle income countries. The MJMS editorial board consists of internationally regarded clinicians and scientists from low and middle income countries.