Precisión de fórmulas para cálculo de LIO en pacientes con queratometrías promedio mayores de 46 dioptrías

Q3 Medicine Archivos De La Sociedad Espanola De Oftalmologia Pub Date : 2024-10-01 DOI:10.1016/j.oftal.2024.05.004

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Abstract

Objective

To compare the accuracy of Kane, Barrett Universal II, Haigis, and SRK-T formulas in eyes with average keratometry greater than 46 diopters (D).

Methods

A retrospective analysis was conducted on 101 eyes of 101 patients with average keratometry greater than 46 D. The absolute prediction error (EA) was obtained for each patient one month after surgery. The mean absolute prediction error (MEA), median absolute prediction error (MedEA) and the percentage of patients with absolute refractive error less than 0.25 D, 0.50 D, and 1.00 D were calculated for each formula analyzed.

Results

The Kane formula achieved the lowest MEA (0.53 ± 0.43) and the lowest MedEA (0.41), followed by Barrett Universal II (MEA: 0.56 ± 0.42, MedEA: 0.49), SRK-T (MEA: 0.59 ± 0.44, MedEA: 0.54), and Haigis (MEA: 0.77 ± 0.47, MedEA: 0.69), showing a significant difference in the results. It was also observed that the Kane formula was the most accurate, with the highest percentage of patients, with EA less than 0.25 D, 0.50 D, and 1.00 D (30.7%, 54.4%, and 86.1%, respectively), while the Haigis formula was the least accurate (12.9%, 33.7%, and 69.3%, respectively).

Conclusion

In eyes with corneas having average keratometry greater than 46 D, the Kane formula proves to be a useful tool in intraocular lens (IOL) power calculation and demonstrates higher precision compared to the Barrett Universal II, SRK-T, and Haigis formulas.

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平均角膜度数大于 46 度的患者人工晶体计算公式的准确性。

方法对平均角膜屈光度大于 46 D 的 101 名患者的 101 只眼睛进行回顾性分析，获得每位患者术后一个月的绝对预测误差 (EA)。计算所分析的每种公式的平均绝对预测误差 (MEA)、中位数绝对预测误差 (MedEA) 以及绝对屈光误差小于 0.25 D、0.50 D 和 1.00 D 的患者比例。53±0.43）和最低的 MedEA（0.41），其次是 Barrett Universal II（MEA：0.56±0.42，MedEA：0.49）、SRK-T（MEA：0.59±0.44，MedEA：0.54）和 Haigis（MEA：0.77±0.47，MedEA：0.69），结果显示差异显著。还观察到凯恩公式最准确，EA 小于 0.25 D、0.50 D 和 1.00 D 的患者比例最高（分别为 30.7%、54.4% 和 86.1%），而海吉斯公式最不准确（分别为 12.9%、33.7% 和 69.3%）。结论在角膜平均角膜曲率大于 46 D 的眼睛中，Kane 公式被证明是眼内晶状体 (IOL) 功率计算的有用工具，与 Barrett Universal II、SRK-T 和 Haigis 公式相比具有更高的精确度。

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

Archivos De La Sociedad Espanola De Oftalmologia Medicine-Ophthalmology

CiteScore

1.20

自引率

0.00%

发文量

109

审稿时长

78 days

期刊介绍： La revista Archivos de la Sociedad Española de Oftalmología, editada mensualmente por la propia Sociedad, tiene como objetivo publicar trabajos de investigación básica y clínica como artículos originales; casos clínicos, innovaciones técnicas y correlaciones clinicopatológicas en forma de comunicaciones cortas; editoriales; revisiones; cartas al editor; comentarios de libros; información de eventos; noticias personales y anuncios comerciales, así como trabajos de temas históricos y motivos inconográficos relacionados con la Oftalmología. El título abreviado es Arch Soc Esp Oftalmol, y debe ser utilizado en bibliografías, notas a pie de página y referencias bibliográficas.