Design of a compact corneal topographer to characterize the shape of the cornea

Manuel Campos-García; Daniel Aguirre-Aguirre; Juan Salvador Pérez-Lomelí; Andrés Peña-Conzuelo; Oliver Huerta-Carranza; Christian Camargo-Fierro

doi:10.1117/12.2556052

1 April 2020 Design of a compact corneal topographer to characterize the shape of the cornea

Manuel Campos-García, Daniel Aguirre-Aguirre, Juan Salvador Pérez-Lomelí, Andrés Peña-Conzuelo, Oliver Huerta-Carranza, Christian Camargo-Fierro

Author Affiliations +

Proceedings Volume 11352, Optics and Photonics for Advanced Dimensional Metrology; 113521A (2020) https://doi.org/10.1117/12.2556052
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

In this work we report the design of a conical corneal null-screen compact topographer, which uses a mobile device to capture null-screen reflection produced by the posterior corneal surface. The instrument features a head holder like those of virtual reality headset with the aim of align the topographer. For corneal topography the device is calibrated by testing a reference surface where the geometrical parameters such as the radius of curvature and the conic constant, are obtained. We present examples of surface topography measurements on some human corneas.

Conference Presentation

Citation Download Citation

Manuel Campos-García, Daniel Aguirre-Aguirre, Juan Salvador Pérez-Lomelí, Andrés Peña-Conzuelo, Oliver Huerta-Carranza, and Christian Camargo-Fierro "Design of a compact corneal topographer to characterize the shape of the cornea", Proc. SPIE 11352, Optics and Photonics for Advanced Dimensional Metrology, 113521A (1 April 2020); https://doi.org/10.1117/12.2556052

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