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

被引：0

作者：

Campos-Garcia, Manuel ^{[1
]}

Aguirre-Aguirre, Daniel ^{[1
]}

Salvador Perez-Lomeli, Juan ^{[1
]}

Pena-Conzuelo, Andres ^{[1
]}

Huerta-Carranza, Oliver ^{[1
]}

Camargo-Fierro, Christian ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Ciencias Aplicadas & Tecnol, Circuito Exterior S-N,Ciudad Univ, Mexico City 04510, DF, Mexico

[2] Inst Politecn Nacl, Escuela Super Med, Calle Plan San Luis Diaz Miron S-N, Mexico City 11340, DF, Mexico

来源：

OPTICS AND PHOTONICS FOR ADVANCED DIMENSIONAL METROLOGY | 2021年 / 11352卷

基金：

芬兰科学院;

关键词：

Null-screen; Corneal Topography; Aspherics; Surface Measurements; Optical Metrology; NULL-SCREEN;

D O I：

10.1117/12.2556052

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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.

引用

页数：10

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