Abstract
Optical coherence tomography (OCT) is a relatively new non-contact, non-invasive technique for in vivo examination of the human retina. It is based on the Michaelson interferometer. It is analogous to B-scan ultrasound except that it measures optical rather than acoustic reflectivity. It has a depth resolution of approx. 10 µm compared to 150 µm of B-scan ultrasound. High-frequency ultrasound has a resolution of approximately 20 µm, but due to the limited penetration of 4 mm it can only be applied to the anterior segment. Neither computed tomography nor magnetic resonance imaging achieve a similar resolution to that of OCT.
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© 2001 Springer Science+Business Media Dordrecht
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Stanga, P.E., Bird, A.C. (2001). Optical Coherence Tomography (OCT): principles of operation, technology, indications in vitreoretinal imaging and interpretation of results. In: Sampaolesi, J.R. (eds) Laser Scanning: Update 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0322-3_2
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DOI: https://doi.org/10.1007/978-94-010-0322-3_2
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3866-9
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