Analysis of Four Aberrometers for Evaluating Lower and Higher Order Aberrations

Fabiano Cade, Andrea Cruzat, Eleftherios I Paschalis, Lilian Espírito Santo and Roberto Pineda

PLOS ONE, 2013, vol. 8, issue 1, 1-7

Abstract: Purpose: To compare the measurements of lower and higher order aberrations (HOA) of 4 commonly used aberrometers. Setting: Massachusetts Eye & Ear Infirmary, Boston, USA. Design: Prospective, cross-sectional study, in a controlled, single-blinded fashion. Methods: Multiple readings were obtained in 42 eyes of 21 healthy volunteers, at a single visit, with each of the following aberrometers: Alcon LADARWave®, Visx WaveScan®, B & L Zywave®, and Wavelight Allegro Analyzer®. Results were compared and analyzed in regards to the lower and HOA, to the different wavefront sensing devices and software, Tscherning and Hartmann–Shack and between the Fourier and Zernike algorithms. Statistical analysis included Bland-Altman plots, Intraclass Correlation Coefficient (ICC), multiple comparison tests with Analysis of Variance and Kruskal-Wallis. Significant level was set to p

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0054990

DOI: 10.1371/journal.pone.0054990

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