Macular Thickness and Its relation with Age and Gender in Healthy Eyes Using Cirrus-HD Optical Coherence Tomography
Keywords:Macular Thickness, Healthy Eyes, OCT
Purpose of the Study: To provide a normative data for macular thickness in healthy Iraqi eyes using Zeiss
cirrus HD-OCT and to determine the effects of age and gender on their measurements.
Materials and Methods: Two hundred healthy adult volunteers (?20 years), four hundred eyes underwent
macular cube scanning using Zeiss cirrus-HD OCT. Macular thickness from all 9 regions of the Early
Treatment Diabetic Retinopathy Study map was documented for each subject. Variations in macular
thickness by age and gender were determined.
Results: The mean age of volunteers was 37±10.4 (range 21-67)years. The mean of central foveal thickness
was 254.6±17.3Mm, the mean macular thickness was 279.0 ± 10.7 Mm, and the macular volume was 10.0 ±
0.4 mm3.Females were found to have a significantly thinner macula (P< 0.001) than males in all 9 ETDRS
regions except outer inferior quadrant. Central foveal thickness was found to have very weak correlation
with age which was not statistically significant. All other macular regions, mean macular thickness and
volume showed statistically significant nonlinear reduction with age(p value<0.001).
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