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Distortions of the posterior surface in optical coherence tomography images of the isolated crystalline lens: effect of the lens gradient index

AuthorsBorja, David; Siedlecki, Damian; Castro, Alberto de ; Uhlhorn, Stephen; Ortiz, Sergio ; Arrieta, Esdras; Parel, Jean Marie; Marcos, Susana ; Manns, Fabrice
Issue Date2010
PublisherOptical Society of America
CitationBiomedical Optics Express 1: 1331- 1340 (2010)
AbstractWe quantify the posterior surface distortions in optical coherence tomography (OCT) images of isolated crystalline lenses. The posterior radius of curvature and asphericity obtained from OCT images acquired with the beam incident first on the anterior, and then the posterior, surface were compared. The results were compared with predictions of a ray-tracing model which includes the index gradient. The results show that the error in the radius of curvature is within the measurement reproducibility and that it can be corrected by assuming a uniform refractive index. However, accurate asphericity values require a correction algorithm that takes into account the gradient.
Identifiersdoi: 10.1364/BOE.1.001331
issn: 2156-7085
Appears in Collections:(CFMAC-IO) Artículos
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