Diurnal Variation in Choroidal and Retinal Thickness of the Early Treatment of Diabetic Retinopathy Study Macular Subfields Determined Using Swept-Source Optical Coherence Tomography.
Ophthalmologica
; 233(3-4): 192-7, 2015.
Article
em En
| MEDLINE
| ID: mdl-25791314
ABSTRACT
PURPOSE:
To describe diurnal variation in choroidal thickness (CT) and retinal thickness (RT) of the nine Early Treatment of Diabetic Retinopathy Study (ETDRS) macular subfields determined using swept-source optical coherence tomography.METHODS:
A prospective study was conducted on 24 healthy Korean volunteers who underwent two sequential measurements of a randomly selected eye at 9 a.m., 1 p.m., and 6 p.m. The radial scan mode was used. To determine the repeatability and reliability, we applied intragrader agreement using the intraclass correlation coefficient (ICC).RESULTS:
Significant diurnal variation in CT was observed. The highest mean CT was found at 9 a.m. The lowest mean CT occurred at 1 p.m. There was excellent intragrader agreement, with the ICC ranging from 0.961 to 0.997. There was no significant diurnal variation in RT.CONCLUSION:
There was significant diurnal variation in CT. The choroid was thinner at 1 p.m. than at 9 a.m. and 6 p.m.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Retina
/
Corioide
/
Ritmo Circadiano
/
Tomografia de Coerência Óptica
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Ophthalmologica
Ano de publicação:
2015
Tipo de documento:
Article