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Reliability measurement of total aberrations using Galilei G4 Dual Scheimpflug Analyzer

Mat Rejab @ Md Rejab, Noorshazana and Hilmi, Mohd Radzi and Mohd. Kamal, Khairidzan and Md Mustafa, Md Muziman Syah (2019) Reliability measurement of total aberrations using Galilei G4 Dual Scheimpflug Analyzer. In: 7th USM Ophthalmology Symposium in conjunction with the 9th Conjoint Ophthalmology Scientific Conference, 13 - 15 Sept 2019, Kelantan, Malaysia.

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Abstract

38 eyes of subjects aged 21 to 27 years with spherical equivalent ranging from -1.50D to 7.00D were recruited. Corneal wavefront aberrations were measured; LoA (1st and 2nd order aberration), HoA (3rd and 4th order aberration). Any conditions in which corneal videoker-atography could not provide reproducible measurement (obstruction of the central cornea) were also excluded. Total corneal aberrations were measured based on root mean square (RMS) value converted from Zernike polynomials. For repeatability measurement, three repetitive measure-ments in five minutes for each eye in a single session were taken by 2 experience examiners. Time-interval between measurements was set at one week for reproducibility measurement,. Re-peated-measures analysis of variance (RM-ANOVA), Bland-Altman, limits of agreement and intraclass correlation coefficients (ICCs) were used for analysis.

Item Type: Conference or Workshop Item (Poster)
Additional Information: 7746/79256
Uncontrolled Keywords: Reliability measurement, total aberrations, Galilei G4 Dual Scheimpflug Analyzer
Subjects: R Medicine > RE Ophthalmology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Allied Health Sciences > Department of Optometry and Visual Science
Kulliyyah of Medicine > Department of Ophthalmology
Depositing User: Dr. Md Muziman Syah Md Mustafa
Date Deposited: 28 Feb 2020 10:18
Last Modified: 10 Jul 2020 11:16
URI: http://irep.iium.edu.my/id/eprint/79256

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