Measurement of fine dynamic changes of corneal topography by use of interferometry

Henryk T. Kasprzak; Jaroslaw W. Jaronski

doi:10.1117/12.473565

19 June 2002 Measurement of fine dynamic changes of corneal topography by use of interferometry

Henryk T. Kasprzak, Jaroslaw W. Jaronski

Proceedings Volume 4778, Interferometry XI: Applications; (2002) https://doi.org/10.1117/12.473565
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Paper presents results of in vivo measurements of dynamic variations of the corneal topography by use of the Twyman Green interferometer. Sequence of interferograms were recorded by the CCD camera and stored in the computer memory. Then the fringe tracking method was used separately to each interferogram giving the phase surface of the wave reflected from the cornea in the numerical form. Results from neighboring interferograms were subtracted giving new sequence of changes of the corneal topography within 40 ms. Obtained results show the complex space distribution of the corneal topography variations.

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Henryk T. Kasprzak and Jaroslaw W. Jaronski "Measurement of fine dynamic changes of corneal topography by use of interferometry", Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); https://doi.org/10.1117/12.473565

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KEYWORDS

Cornea

Eye

Interferometry

CCD cameras

Interferometers

In vivo imaging

Wavefronts

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