Precision of intraocular lens power prediction in eyes shorter than 22 mm: An analysis of 6 formulas

Journal of Cataract and Refractive Surgery
Ankur K ShrivastavaSiddhartha Nanda

Abstract

To analyze the precision of 6 intraocular lens (IOL) power calculation formulas in predicting refractive outcome in eyes with an axial length (AL) less than 22.0 mm. Department of Ophthalmology, All India Institute of Medical Sciences, Raipur, India. Retrospective observational study. Patients with an AL less than 22.0 mm were included in the study. If both eyes were eligible, a randomly selected eye was chosen. Optical biometry with partial coherence interferometry (PCI) was performed in all cases. Six formulas were analyzed: Barrett Universal II, Haigis, Hoffer Q, Holladay 2, RBF Method and SRK/T. The mean numerical error was defined as the difference between the actual postoperative spherical equivalent (SE) at the 1-month follow-up and the predicted postoperative SE. The median absolute error was calculated and compared between all 6 formulas after the zeroing of the mean numerical error by adjusting the lens constant individually for each formula. The study comprised 50 eyes of 50 patients. The Friedman test was applied to compare the median absolute error between the 6 formulas after the zeroing of the mean numerical error. Post hoc analysis and Bonferroni correction for multiple comparisons showed no significant statisti...Continue Reading

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Citations

Jan 30, 2020·European Journal of Ophthalmology·Gabor Nemeth, Laszlo Modis
Aug 21, 2020·Journal of Cataract and Refractive Surgery·Eszter SzalaiAdrienne Csutak
Oct 2, 2020·The British Journal of Ophthalmology·Veronika RögglaRupert Menapace
Dec 2, 2020·Journal of Cataract and Refractive Surgery·Rohit Shetty, Pooja Khamar
Feb 18, 2021·European Journal of Ophthalmology·Gabor NemethLaszlo Modis
May 21, 2021·Current Eye Research·Oleksiy V VoytsekhivskyyDiogo Hipólito-Fernandes
Jul 15, 2021·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Min HouMingxing Wu
Aug 29, 2021·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·Gerd U AuffarthMaximilian Hammer
Aug 25, 2021·Indian Journal of Ophthalmology·Ankur K ShrivastavaAjay Kumar

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