Comparison of corneal thickness measurements using Galilei, HR Pentacam, and ultrasound

Cornea
Hamid Reza Jahadi HosseiniMohammad Bagher Abtahi

Abstract

To assess the degrees of agreement in measuring corneal thickness in normal eyes between 2 noncontact systems based on the dual Scheimpflug system (Galilei; Ziemer) and rotating Scheimpflug imaging (HR Pentacam; Oculus) and also between each of these methods and the gold-standard method of ultrasound pachymetry. In a prospective study, measurement agreement was assessed in 47 eyes of 47 healthy subjects. All eyes were examined with each of the 3 devices. Measurements made with the Galilei and HR Pentacam were compared with those made with ultrasound. The central corneal thickness (CCT) and thinnest pachymetry of the Galilei and HR Pentacam were also compared. The mean values of CCT obtained from Galilei, HR Pentacam, and ultrasound were 560.57 ± 29.10, 542.31 ± 30.50, and 548.61 ± 29.92 μm, respectively. The 95% limits of agreement of each of these devices with ultrasound were -11.03 and +34.94 μm for the Galilei and -33.67 and +20.74 μm for the Pentacam. The 95% limits of agreement of Galilei with Pentacam in measurement of central and thinnest corneal thickness were -3.39 and +33.11 and -10.40 and +27.29 μm, respectively. Although CCT measurements made with the HR Pentacam were thinner (P < 0.001), and those obtained with Gal...Continue Reading

Associated Clinical Trials

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Citations

Feb 19, 2013·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Zaina N Al-MohtasebMitchell P Weikert
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