Development of a long cone corneal topographer to evaluate corneas without symmetry of revolution

Marco Montes Valles; Adán Ayrtón Rojas Liévanos; Manuel Campos García; Christian Camargo-Fierro; Violeta Guadalupe Camargo-Fierro

doi:10.1117/12.3014132

17 June 2024 Development of a long cone corneal topographer to evaluate corneas without symmetry of revolution

Marco Montes Valles, Adán Ayrtón Rojas Liévanos, Manuel Campos García, Christian Camargo-Fierro, Violeta Guadalupe Camargo-Fierro

Author Affiliations +

Proceedings Volume 13021, Optical Fabrication and Testing VIII; 130210L (2024) https://doi.org/10.1117/12.3014132
Event: SPIE Optical Systems Design, 2024, Strasbourg, France

Conference Poster

Abstract

In this project we propose a new corneal topographer that improves the accuracy of measurement from previous versions, by gathering all those details that made them to have great accuracy. The corneal topographer uses the null-screen method which is based on the idea that a reflected image in a surface contains information about the form of the reflective surface. The topographer uses a long cone, and it is aimed to evaluate corneas removing the symmetry of revolution of the algorithms. At first, the corneal topographer is utilized in a spheric reference surface, where the results obtained show that the radio of the reconstructed surface varies 0.11 % from the radio of the tested surface. This project is still in process since the evaluation algorithms must be adapted to evaluate corneas without symmetry of revolution. Keywords: null screen, corneal topography, topographic maps.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Marco Montes Valles, Adán Ayrtón Rojas Liévanos, Manuel Campos García, Christian Camargo-Fierro, and Violeta Guadalupe Camargo-Fierro "Development of a long cone corneal topographer to evaluate corneas without symmetry of revolution", Proc. SPIE 13021, Optical Fabrication and Testing VIII, 130210L (17 June 2024); https://doi.org/10.1117/12.3014132

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