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- Title
Diurnal Choroidal Thickness Changes in Normal Eyes of Turkish People Measured by Spectral Domain Optical Coherence Tomography.
- Authors
Ayrancı Osmanbasoglu, Ozen; Alkin, Zeynep; Ozkaya, Abdullah; Ozpınar, Yavuz; Taylan Yazici, Ahmet; Demirok, Ahmet
- Abstract
Purpose. To analyse the diurnal variation of central choroidal thickness (CCT) in healthy emetropic patients during working hours. Methods. Fifty healthy young emmetrpic volunteers were included in this study. CCT was measured at 9AM and 4PM with spectral domain optical coherence tomography (Spectralis, Heidelberg Engineering) with enhanced depth imaging. Diurnal variation of CCT, the correlation between right and left eyes and the demographic factors affecting this variation were assessed. Findings. The mean CCT at 9AM and 4 PM was 308.7 ± 64.5 μm and 308.7 ± 62 μm, respectively, with a mean diurnal amplitude of .0.03 ± 14.7 μm, ranging between -55 μm and 47μm, the difference was statistically insignificant (P: 0.9).There were positive correlations between right and left eyes among CCT measurements at 9 AM, 4 PM and the mean amplitude of diurnal change (r: 0.65, P < 0.01; r: 0.60, P < 0.01; r: 0.45, P: 0.00, resp.).There was a statistically significant negative correlation between the magnitude of diurnal change and age (r: -0.27, P: 0.01). Conclusion. Although the mean CCT in the all group does not show significant variation during working hours, the pattern of diurnal variation may vary from person to person according to age, and there is a great harmony between the two eyes.
- Subjects
TURKEY; TOMOGRAPHY; RETINAL anatomy; ACADEMIC medical centers; CIRCADIAN rhythms; STATISTICAL correlation; LASERS; LONGITUDINAL method; STATISTICS; T-test (Statistics); INTER-observer reliability; CROSS-sectional method; DATA analysis software; DESCRIPTIVE statistics
- Publication
Journal of Ophthalmology, 2013, p1
- ISSN
2090-004X
- Publication type
Article
- DOI
10.1155/2013/687165