ISSN: 2459 - 1777 | E-ISSN 2587-0394
Volume: 4
Issue: 1
Year: 2019
Intraobserver Repeatability of Corneal and Anterior Segment Parameters Obtained by the Scheimpflug camera- Placido Corneal Topography System [Beyoglu Eye J]
Beyoglu Eye J. Ahead of Print: BEJ-74946 | DOI: 10.14744/bej.2019.74946  

Intraobserver Repeatability of Corneal and Anterior Segment Parameters Obtained by the Scheimpflug camera- Placido Corneal Topography System

Elif Ertan1, Mustafa Doğan2
1Siirt Kurtalan State Hospital, Siirt, Turkey
2Depatment of Opthalmology, Afyonkarahisar University of Health Sciences, Afyonkarahisar, Turkey

INTRODUCTION: The aim of this study was to assess the intraobserver repeatability of, central corneal thickness, peripheral corneal thickness at 2.5mm measurements, keratometry values (step K, flat K), WTW (white-to-white) and anterior chamber depth using Sirius topography in healthy eyes.
METHODS: 100 eyes of 50 healthy patients underwent on Sirius by a single examiner. Two consecutive scans were acquired for each eye. Repeatability was assessed using test–retest variability, the coefficient of variation and the intraclass correlation coefficient (ICC).
RESULTS: Fifty patients (100 eyes) met the entrance criteria. There were 18 women (36%) and 32 men (64%) with an age range of 23 to 56 years. The mean age was 30,38 ±8,03 years. A COV of 0.4% or less and an ICC more than 0.99 (showing excellent repeatability) were achieved for most parameters, excluding peripheral corneal thickness(at 2,5 mm, temporal, süperior, inferior, nasal thickness).
DISCUSSION AND CONCLUSION: The anterior segment parameters obtained by the Scheimpflug camera– Placido corneal topography system were highly repeatable.

Keywords: peripheral corneal thickness, white-to-white, repeatability, sirius, central corneal thickness, anterior chamber depth, keratometry




Corresponding Author: Elif Ertan, Türkiye


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