Measurements of corneal topography using a compact null-screen corneal topographer with a mobile device

Manuel Campos-García; Luis Ángel Pantoja-Arredondo; Daniel Aguirre-Aguirre; Victor Ivan Moreno-Oliva; Oliver Huerta-Carrranza; Victor Emanuel Armongol-Cruz

doi:10.1117/12.2592802

12 September 2021 Measurements of corneal topography using a compact null-screen corneal topographer with a mobile device

Manuel Campos-García, Luis Ángel Pantoja-Arredondo, Daniel Aguirre-Aguirre, Victor Ivan Moreno-Oliva, Oliver Huerta-Carrranza, Victor Emanuel Armongol-Cruz

Author Affiliations +

Proceedings Volume 11873, Optical Fabrication, Testing, and Metrology VII; 118730F (2021) https://doi.org/10.1117/12.2592802
Event: SPIE Optical Systems Design, 2021, Online Only

Abstract

In this work, we use a null-screen corneal topographer with a semiradial spot pattern by using a mobile device’s camera to obtain images of the reflected pattern with the main aim of obtaining the corneal topography. First, we discuss how to integrate the system to calibrate it by testing a reference surface where we obtain optical parameters such as the radius of curvature and the conic constant, as well as elevation, sagittal curves, and meridional curvature maps with this method. Finally, we show some prelaminar measurements of the topography of some human corneas.

Citation Download Citation

Manuel Campos-García, Luis Ángel Pantoja-Arredondo, Daniel Aguirre-Aguirre, Victor Ivan Moreno-Oliva, Oliver Huerta-Carrranza, and Victor Emanuel Armongol-Cruz "Measurements of corneal topography using a compact null-screen corneal topographer with a mobile device", Proc. SPIE 11873, Optical Fabrication, Testing, and Metrology VII, 118730F (12 September 2021); https://doi.org/10.1117/12.2592802

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