Slit-lamp dual-beam interferometer

Adolf Friedrich Fercher; Haicang Li; Christoph K. Hitzenberger

doi:10.1117/12.167412

1 February 1994 Slit-lamp dual-beam interferometer

Adolf Friedrich Fercher, Haicang Li, Christoph K. Hitzenberger

Proceedings Volume 2083, Microscopy, Holography, and Interferometry in Biomedicine; (1994) https://doi.org/10.1117/12.167412
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

A modified slit lamp is described which makes axial eye length measurements with optical interferometry available to the clinic. A separate partial coherence Doppler interferometer is coupled to the slit lamp optics by a monomode fiber and a slit lamp attachment. As compared with the more common ultrasonic echo-impulse technique the main advantages of this technique are its high accuracy and resolution and its noncontact operation. The instrument is described and first results are presented. A standard deviation of +/- 21 micrometers has been obtained.

Citation Download Citation

Adolf Friedrich Fercher, Haicang Li, and Christoph K. Hitzenberger "Slit-lamp dual-beam interferometer", Proc. SPIE 2083, Microscopy, Holography, and Interferometry in Biomedicine, (1 February 1994); https://doi.org/10.1117/12.167412

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