Interferometry for in-vivo testing of artificial tears on the surface of the cornea

Monika I. Lechna-Marczynska; Tomasz J. Licznerski; Henryk T. Kasprzak

doi:10.1117/12.353090

14 July 1999 Interferometry for in-vivo testing of artificial tears on the surface of the cornea

Monika I. Lechna-Marczynska, Tomasz J. Licznerski, Henryk T. Kasprzak

Proceedings Volume 3820, 11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics; (1999) https://doi.org/10.1117/12.353090
Event: Eleventh Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 1998, Stara Lesna, Slovakia

Abstract

The shearing interferometry is presented as in vivo method for testing artificial tears covering the cornea. The stability of two types of artificial tears (gel and liquid) on the surface of the cornea was estimated by the analysis of interferograms. The 3 mW He-Ne laser was used as the light source in the shearing interferometer and CCD camera for recording the interference images. The coherent light is reflected from the surface of the cornea covered with the artificial tears. The reflected wavefront is directed to the lateral shearing interferometer and forms the interference pattern. The sequence of the obtained interferograms were recorded on VHS video tape. Then selected frames were digitized and analyzed in computer by use of image processing software. The proposed method is noncontact and noninvasive.

Citation Download Citation

Monika I. Lechna-Marczynska, Tomasz J. Licznerski, and Henryk T. Kasprzak "Interferometry for in-vivo testing of artificial tears on the surface of the cornea", Proc. SPIE 3820, 11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, (14 July 1999); https://doi.org/10.1117/12.353090

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KEYWORDS

Cornea

Eye

Wavefronts

Interferometry

Shearing interferometers

In vivo imaging

CCD cameras

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