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Published on: November 19, 2012
Effect of image quality on tissue thickness measurements obtained with spectral domain-optical coherence tomography
Madhusudhanan Balasubramanian1, Christopher Bowd, Gianmarco Vizzeri
1Hamilton Glaucoma Center, Department of Ophthalmology, University of California, San Diego, La Jolla CA. 92093-0946 , USA.
Abstract:
The purpose of this study was to investigate the effect of image quality on retinal nerve fiber layer (RNFL) and retinal thickness measurements obtained using three commercially available spectral domain-optical coherence tomographers (SD-OCT). Subjectively determined good, medium and poor quality images were obtained from four healthy and one glaucoma suspect eyes. RNFL and retinal thickness measurements were compared as a function of image quality. Results indicate that when image quality is within the range specified as acceptable by SD-OCT manufacturers, RNFL and retinal thickness measurements are comparable.
