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Proceedings Paper

Custom-oriented wavefront sensor for human eye properties measurements
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Paper Abstract

The problem of correct measurement of human eye aberrations is very important with the rising widespread of a surgical procedure for reducing refractive error in the eye, so called, LASIK (laser-assisted in situ keratomileusis). In this paper we show capabilities to measure aberrations by means of the aberrometer built in our lab together with Active Optics Ltd. We discuss the calibration of the aberrometer and show invalidity to use for the ophthalmic calibration purposes the analytical equation based on thin lens formula. We show that proper analytical equation suitable for calibration should have dependence on the square of the distance increment and we illustrate this both by experiment and by Zemax Ray tracing modeling. Also the error caused by inhomogeneous intensity distribution of the beam imaged onto the aberrometer's Shack-Hartmann sensor is discussed.

Paper Details

Date Published: 8 June 2006
PDF: 9 pages
Proc. SPIE 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine, 601806 (8 June 2006); doi: 10.1117/12.669243
Show Author Affiliations
Sergey Galetskiy, Moscow Lomonosov State Univ. (Russia)
Renat Letfullin, Moscow Lomonosov State Univ. (Russia)
Alex Dubinin, Moscow Lomonosov State Univ. (Russia)
Tatyana Cherezova, Moscow Lomonosov State Univ. (Russia)
Alexey Belyakov, Active Optics Ltd. (Russia)
Alexis Kudryashov, Active Optics Ltd. (Russia)

Published in SPIE Proceedings Vol. 6018:
5th International Workshop on Adaptive Optics for Industry and Medicine
Wenhan Jiang, Editor(s)

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