Numerical and experimental selection of optimal parameters in the interferometric method of measuring the thickness of the cornea

A. A. Adamov; M. S. Baranov; V. N. Khramov

doi:10.1117/12.2521424

3 June 2019 Numerical and experimental selection of optimal parameters in the interferometric method of measuring the thickness of the cornea

A. A. Adamov, M. S. Baranov, V. N. Khramov

Author Affiliations +

Proceedings Volume 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling; 1106608 (2019) https://doi.org/10.1117/12.2521424
Event: International Symposium on Optics and Biophotonics VI: Saratov Fall Meeting 2018, 2018, Saratov, Russian Federation

Abstract

In this paper we consider the problem of determining the most optimal parameters of an apparatus for measuring the thickness of the cornea in an interferometric method. Earlier, a formula was derived to determine the thickness of the corneal layer, taking into account the radius of curvature in the range from 0.5 mm to 1 mm and an error of 0.5-1.0%. The accuracy of the method depends on the quality of the determination of the thickness of the interference fringes. We consider the possibility of using this method for measuring tissue thicknesses over a wider range of values. The optimum values for the angle of incidence of the radiation we was selected by the experimental and calculation methods: 0.07 radians for the range from 0.01 mm to 0.1 mm and 0.17 radians for the range from 0.1 mm to 1 mm. We give a scheme of a simplified construction of an interference thickness meter and experimental interferograms with computer processing.

Citation Download Citation

A. A. Adamov, M. S. Baranov, and V. N. Khramov "Numerical and experimental selection of optimal parameters in the interferometric method of measuring the thickness of the cornea", Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 1106608 (3 June 2019); https://doi.org/10.1117/12.2521424

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