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人工晶状体计算公式的准确性

Melles, R.B., Holladay, J.T., Chang, W.J.

期刊名称:Ophthalmology

卷期:2018年第125卷第2期

摘要

摘要:目的:比较使用单一光学生物测量装置预测术后折射率的人工晶状体(IOL)计算公式(Barrett Universal IIHaigisHoffer QHolladay 1Holladay 2OlsenSRK/T) 的准确性。

设计:回顾性连续病例系列。

参与者:共13301次白内障手术,其中一种是SN60WF人工晶体植入,另一种是参与了5200个手术的SA60AT人工晶体植入(爱尔康股份有限公司,沃思堡市, 得克萨斯州)

方法:201471日至20151231日,所有接受白内障手术的患者均可使用Lenstar 900光学生物技术。在最后的分析中,按照一个病人分析一只眼睛,总共得到了18501例。我们比较了每一个公式对预测的球型当量误差的影响,并计算了在4个公式中应用Wang-koch (WK)调整对轴向长度>25.0 mm的眼睛的影响。

结果:对于SN60WF,预测误差的标准偏差按照从小到大分别为:Barrett Universal II (0.404) Olsen (0.424) Haigis (0.437) Holladay 2 (0.450) Holladay 1 (0.453) SRK/T (0.463) Hoffer Q (0.473) SA60AT的结果相似。巴雷特公式在两种类型的人工晶状体术后折射率预测(P < 0.01)中明显优于其他公式。WK轴向长度修正的应用,一般会导致长眼轴的结果从远视转变为近视。

结论:总的来说,Barrett Universal II公式对所研究的两类人工晶体的预测误差最小。

PURPOSE:To compare the accuracy of intraocular lens (IOL) calculation formulas (Barrett Universal II, Haigis, Hoffer Q, Holladay 1, Holladay 2, Olsen, and SRK/T) in the prediction of postoperative refraction using a single optical biometry device.DESIGN:Retrospective consecutive case series.PARTICIPANTS:A total of 13 301 cataract operations with an AcrySof SN60WF implant and 5200 operations with a SA60AT implant (Alcon Laboratories, Inc., Fort Worth, TX).METHODS:All patients undergoing cataract surgery between July 1, 2014, and December 31, 2015, with Lenstar 900 optical biometry were eligible. A single eye per patient was included in the final analysis, resulting in a total of 18 501 cases. We compared the performance of each formula with respect to the error in predicted spherical equivalent and evaluated the effect of applying the Wang-Koch (WK) adjustment for eyes with axial length >25.0 mm on 4 of the formulas.RESULTS:For the SN60WF, the standard deviation of the prediction error, in order of lowest to highest, was the Barrett Universal II (0.404), Olsen (0.424), Haigis (0.437), Holladay 2 (0.450), Holladay 1 (0.453), SRK/T (0.463), and Hoffer Q (0.473), and the results for the SA60AT were similar. The Barrett formula was significantly better than the other formulas in postoperative refraction prediction (P < 0.01) for both IOL types. Application of the WK axial length modification generally resulted in a shift from hyperopic to myopic outcomes in long eyes.CONCLUSIONS:Overall, the Barrett Universal II formula had the lowest prediction error for the 2 IOL models studied.

 


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