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Enhanced depth imaging optical coherence tomography: choroidal thickness and correlations with age, refractive error,
Dafna Goldenberg1, Elad Moisseiev, Michaela Goldstein
1Department of Ophthalmology, Tel Aviv Medical Center, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Background And Objective:
To evaluate choroidal thickness at five macular locations and assess the correlations between choroidal thickness at these locations with age, refractive error, and axial length.
Patients And Methods:
Eighty-four eyes from 42 healthy adult volunteers were included. Enhanced depth imaging by spectral-domain optical coherence tomography was performed, and choroidal thickness was measured at five macular locations: subfoveal and 3 mm nasal, temporal, superior, and inferior. Correlations of choroidal thickness at each location with age, refractive error, and axial length were analyzed.
Results:
Mean choroidal thicknesses at the subfoveal, superior, inferior, temporal, and nasal locations were 293, 308, 264, 263, and 174 μm, respectively. A correlation was found between choroidal thickness, age, refractive error, and axial length at all locations.
Conclusion:
Mean subfoveal choroidal thickness in healthy adults is approximately 300 μm. A correlation was found between choroidal thickness and all parameters studied.