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Proceedings Paper

Intraocular lens characterization using a quadric-wave lateral shearing interferometer wave front sensor
Author(s): W. Boucher; S. Velghe; B. Wattellier; D. Gatinel
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Paper Abstract

We present the application of Quadri-Wave Lateral Shearing Interferometry (QWLSI), a wave front sensing technique, to characterize synthetic intraocular lens (IOL). Wave front sensing is not only a tool to quantify optical quality, but also to map the local (dust, scratches) or global possible defects. This method offers the crucial advantage that it yields an analyzed wave front without the use of a reference arm and consequent time consuming alignment. Moreover thanks to the acceptance of QWLSI to high numerical aperture beams, no additional optics is required. This makes lens characterization convenient and very fast. We will first explain the QWLSI design and metrological properties (high resolution and dynamic) and its analysis features (aberration measurement, MTF evaluation). We will present our device KALEO for characterization of IOLs. We will particularly show aberrations and MTF measurements of monofocal spherical IOLs. We will present how the QWLSI can answer to the specific analysis of aspherical IOLs. We will finally show a complete characterization of multifocal IOLs in one measurement helping the propagation theory.

Paper Details

Date Published: 25 September 2008
PDF: 8 pages
Proc. SPIE 7102, Optical Fabrication, Testing, and Metrology III, 71020Q (25 September 2008); doi: 10.1117/12.797682
Show Author Affiliations
W. Boucher, PHASICS S.A. (France)
S. Velghe, PHASICS S.A. (France)
B. Wattellier, PHASICS S.A. (France)
D. Gatinel, Rothschild Foundation, CEROC (France)

Published in SPIE Proceedings Vol. 7102:
Optical Fabrication, Testing, and Metrology III
Angela Duparré; Roland Geyl, Editor(s)

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