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Axial length variation impacts on retinal vessel density and foveal avascular zone area measurement using optical coherence tomography angiography

Sampson, D.M., Gong, P., An, D., Menghini, M., Hansen, A., Mackey, D.A., Sampson, David and Chen, F.K. (2017) Axial length variation impacts on retinal vessel density and foveal avascular zone area measurement using optical coherence tomography angiography

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Abstract

We examined the impact of axial length on superficial retinal vessel density (SRVD) and foveal avascular zone area (FAZA) measurement using optical coherence tomography angiography. The SRVD and FAZA were quantified before and after correction for magnification error associated with axial length variation. Although SRVD did not differ before and after correction for magnification error in the parafoveal region, change in foveal SRVD and FAZA were significant. This has implications for clinical trials outcome in diseased eyes where significant capillary dropout may occur in the parafovea.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions : Faculty of Engineering and Physical Sciences
Faculty of Health and Medical Sciences
Authors :
NameEmailORCID
Sampson, D.M.
Gong, P.
An, D.
Menghini, M.
Hansen, A.
Mackey, D.A.
Sampson, Davidd.sampson@surrey.ac.uk
Chen, F.K.
Date : 2017
DOI : 10.1117/12.2270134
Uncontrolled Keywords : Angiography, Eye protection, Optical tomography, Photonics, Tomography, Area measurement, Axial length, Clinical trial, Foveal avascular zones, Retinal vessels, Ophthalmology
Depositing User : Maria Rodriguez-Marquez
Date Deposited : 04 Jun 2018 08:44
Last Modified : 19 Sep 2018 11:32
URI: http://epubs.surrey.ac.uk/id/eprint/846751

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