Diurnal Variation of Retina Thickness measured with Time Domain and Spectral Domain Optical Coherence Tomography in Normal Subjects
Purpose: To investigate diurnal variation in macular thickness and total macular volume using time domain optical coherence tomography (TD OCT) and spectral domain OCT (SD OCT) in normal subjects.
Methods: Data was derived from 52 eyes from 52 normal subjects. Macular thickness, macular volume were measured by using TD OCT and SD OCT at 8 a.m. and 6 p.m.
Results: Comparing TD OCT measurements, retinal thickness was significantly greater in the afternoon than in the morning in 3 of 9 grid subfields: central macular thickness (CMT) (194 vs. 190 um, p=0.006) and the superior and temporal ...
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