Manuel Campos-Garcíahttps://orcid.org/0000-0003-2121-9549,1 Daniel Aguirre-Aguirre,1 Juan Salvador Pérez-Lomelí,1 Andrés Peña-Conzuelo,1 Oliver Huerta-Carranza,1 Christian Camargo-Fierro2
1Univ. Nacional Autónoma de México (Mexico) 2Instituto Politécnico Nacional (Mexico)
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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.
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Manuel Campos-García, Daniel Aguirre-Aguirre, Juan Salvador Pérez-Lomelí, Andrés Peña-Conzuelo, Oliver Huerta-Carranza, 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