Outcomes of the Haigis-L formula for calculating intraocular lens power in extreme long axis eyes after myopic laser in situ keratomileusis.

Eye
Xiaoling FangYulan Wang

Abstract

To evaluate the accuracy of refractive prediction by the Haigis-L formula compared to four other IOL power calculation formulas in eyes with extremely long axial lengths (AL > 29.0 mm) after LASIK. Shanghai Eye Disease and Prevention Treatment Center, Shanghai, China. Retrospective case series. Twenty-nine eyes from 19 patients were available for analysis. The primary outcome measure was the arithmetic refractive prediction error (RPE), defined as the difference between the actual postoperative refractive error and the intended formula-derived refractive target. The main outcome measure was the median absolute refraction prediction error (MedAE). The accuracy of the Haigis-L was compared with Barrett True K No History, Shammas-PL, SRK/Tcorrected K, and Holladay 2corrected K methods to calculate IOL power. The Haigis-L formula had a significantly larger MedAE than Shammas-PL and SRK/Tcorrected K formulas (P = 0.005 and P = 0.015, respectively), a smaller percentage of eyes within ±1.50 diopter (D) of predicted error in refraction compared with Shammas-PL and SRK/Tcorrected K formulas (P = 0.014 and P = 0.005, respectively). The refractive prediction errors of 6 eyes with corneal keratometry of less than 35 D by Haigis-L all had ...Continue Reading

References

Jan 25, 2003·Current Opinion in Ophthalmology·D Rex Hamilton, David R Hardten
Dec 13, 2003·Journal of Cataract and Refractive Surgery·Jaime Aramberri
Mar 20, 2004·Journal of Cataract and Refractive Surgery·Nicola RosaAntonio Romano
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Dec 27, 2006·Journal of Cataract and Refractive Surgery·H John Shammas, Maya C Shammas
Sep 25, 2008·Journal of Cataract and Refractive Surgery·Wolfgang Haigis
Mar 24, 2009·Journal of Cataract and Refractive Surgery·Kenneth J Hoffer
Apr 28, 2009·Journal of Cataract and Refractive Surgery·Wolfgang Haigis
Feb 24, 2015·Journal of Cataract and Refractive Surgery·Chee-Wai WongDaphne C Y Han
Jun 29, 2015·American Journal of Ophthalmology·Kenneth J HofferStanley Bentow
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