三种人工晶体计算公式评估高度近视白内障患者术后屈光度的准确性比较

2021-05-06 19:28:09吴周泉
中国医学创新 2021年9期

吴周泉

【摘要】 目的:研究Barrett Universal Ⅱ(下文简称Barrett)、Haigis、SRK/T三種人工晶体(IOL)算法在高度近视白内障患者术后屈光度预估方面的价值。方法:回顾性分析2018年1月-2019年12月本院确诊的高度近视白内障并接受超声乳化IOL植入治疗的90例患者(90眼)的病案资料,依照眼轴不同分为A组(26~28 mm)、B组(28.01~30 mm)、C组(>30 mm);依照角膜曲率不同分为D组(≤43 D)、E组(43.01~45 D)、F组(>45 D);依照前房深度不同分为G组(≤3.2 mm)、H组(3.3~3.5 mm)、I组(>3.5 mm)。分别使用上述三种IOL算法计算不同组的IOL屈光度平均绝对误差(MAE)。结果:90例患者屈光度MAE比较,Barrett算法误差最小,各算法对比,差异均有统计学意义(P<0.05);在±0.5D误差范围内,Barrett算法占比(71.11%)高于Haigis(38.89%)及SRK/T(50.00%),差异均有统计学意义(P<0.05);A、B、C组和D、E、F组及G、H、I组组内各算法的IOL屈光度MAE比较,差异均有统计学意义(P<0.05),总体上Barrett算法误差最小。结论:IOL屈光度计算推荐使用Barrett算法,误差小。

【关键词】 白内障 高度近视 人工晶体 屈光度 计算公式 超声乳化

[Abstract] Objective: To study the value of Barrett Universal Ⅱ (Barrett), Haigis and SRK/T intraocular lens (IOL) algorithm in predicting postoperative dioptre in patients with high myopia. Method: The clinical data of 90 patients (90 eyes) with high myopia cataract diagnosed in our hospital from January 2018 to December 2019 were retrospectively analyzed. They were divided into group A (26-28 mm), group B (28.01-30 mm) and group C (>30 mm) according to the different eye axis, and group D (≤43 D), group E (43.01-45 D) and group F (>45 D) according to the different corneal curvature. They were divided into group G (≤3.2 mm), group H (3.3-3.5 mm) and group I (>3.5 mm). The mean absolute error (MAE) of IOL diopter in different groups was calculated by the above three algorithms. Result: Compared with the actual spherical equivalent diopter, Barrett algorithm had the smallest error (P<0.05); Within the error range of±0.5 D, Barrett algorithm (71.11%), higher than Haigis (38.89%) and SRK/T (50.00%), the differences were statistically significant (P<0.05); comparison of IOL diopter MAE of group A, B, C, D, E, F and G, H, I showed statistically significant differences (P<0.05), and the error of Barrett algorithm was the smallest in general. Conclusion: Barrett Algorithm is recommended for IOL diopter calculation, and the error is small.

[Key words] Cataract High myopia Intraocular lens Dioptre Calculation formula Phacoemulsification

First-authors address: Aier New Hope Hospital, Taishan 529200, China

doi:10.3969/j.issn.1674-4985.2021.09.032

高度近视白内障患者术后易出现远视漂移问题[1-2]。对于有看近需求的患者而言,往往手术医师多依靠手术经验预留度数,以抗远视化漂移问题[3-4]。随着医学水平的不断进步,加之患者对手术综合质量要求的不断提高,实际手术过程中,需要追求更加精准的人工晶状体度数预估,以更好地执行后续手术操作,抗远视化漂移。本文主要基于当前临床较常使用的三类人工晶体(IOL)屈光度算法展开对照研究[5-6],探讨其各自的准确度优势。笔者回顾性分析本院90例单眼高度近视白内障患者的临床资料,现将研究结果报道如下。

1 资料与方法

1.1 一般资料 回顾性分析2018年1月-2019年12月本院确诊的高度近视白内障并接受超声乳化人工晶体植入治疗的90例患者(90眼)的病案资料,其中男46例(46眼),女44例(44眼),平均年龄(52.36±6.73)岁,平均病程(2.17±0.24)年。纳入标准:(1)确诊高度近视白内障[7],单眼,并接受超声乳化IOL植入治疗;(2)眼轴26 mm及以上;(3)LOSC Ⅲ晶状体核硬度不超过Ⅲ级[8];

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