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Optical Coherence Tomography Findings in the Choroid by Gabriel Coscas; Florence Coscas is a book available to read on EtoBox.

What is Optical Coherence Tomography Findings in the Choroid about?

We discuss the role of optical coherence tomography (OCT) in the evaluation of the changes in the choroid from normal to different diseases, according to age and refractive status. Advances in spectral domain (SD)-OCT have enabled clinicians to visualize in detail the various structures of the choroid using the enhanced depth imaging technique, and, more recently, with the new generation of prototypes swept source (SS)-OCT (1,050 nm and higher scan rate). The software update version (5.4) automatically produced inverted capturing images and the eye tracking technology improves image quality, with a high inter-and intraobserver reproducibility but without automatic measuring software. Choroidal thickness (CT) is defined as the distance between the outer borders of the RPE to the hyper-reflective line of the choroid/sclera boundary at predefined intervals of the inner surface of the sclera. The boundaries of the choroid are difficult to define: not so much for the anterior limit (posterior limit of RPE band), but mainly because of the posterior limit that varies in appearance. Normal choroidal thickness has been described with the Spectralis ® as 287 ± 76 μm and with the Cirrus ® as

Author

Gabriel Coscas; Florence Coscas

Publisher

S. Karger AG

Published

2014

Language

EN