Automatic determination of anterior and posterior corneal limbi from OCT images based on corneal shape analysis

Marta Skrok; David Alonso-Caneiro; Damian Siedlecki

doi:10.1117/12.2527069

19 July 2019 Automatic determination of anterior and posterior corneal limbi from OCT images based on corneal shape analysis

Marta Skrok, David Alonso-Caneiro, Damian Siedlecki

Author Affiliations +

Proceedings Volume 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III; 110781X (2019) https://doi.org/10.1117/12.2527069
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

We present two versatile and reliable methods of determination of the corneal limbi localization from OCT images. These methods are fully automatic and are based on the purely geometrical dependencies of corneal shape, backgrounded by anatomical structure of the corneoscleral area. The first method enables to estimate the position of the point of corneoscleral junction (CSJ) at the anterior surface of the cornea. The second method can be used for automatic retrieval of the limbal point at the posterior surface of the cornea, which plays an important role in quantification of the irido-corneal angle.

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Marta Skrok, David Alonso-Caneiro, and Damian Siedlecki "Automatic determination of anterior and posterior corneal limbi from OCT images based on corneal shape analysis", Proc. SPIE 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III, 110781X (19 July 2019); https://doi.org/10.1117/12.2527069

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KEYWORDS

Optical coherence tomography

Cornea

Image segmentation

Eye

Distortion

Shape analysis

Data processing

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