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

David Borja, Damian Siedlecki, Alberto de Castro, Stephen Uhlhorn, Sergio Ortiz, Esdras Arrieta, Jean Marie Parel, Susana Marcos, Fabrice Manns

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

We 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.

Original languageEnglish (US)
Pages (from-to)1331-1340
Number of pages10
JournalBiomedical Optics Express
Volume1
Issue number5
DOIs
StatePublished - Dec 1 2010

ASJC Scopus subject areas

  • Biotechnology
  • Atomic and Molecular Physics, and Optics

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