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Proceedings Paper

Excimer laser ophthalmic system optical coherence tomography
Author(s): Alexander M. Razhev; Sergei N. Bagayev; Valentin M. Gelikonov; Evgeny S. Kargapoltsev; Roman V. Kuranov; Ilya V. Turchin; Andrey A. Zhupikov
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Paper Abstract

The excimer laser ophthalmic system Medilex including the ArF (193-nm) excimer laser with optical delivery system and optical coherence tomograph (OCT) for correction of the refraction anomalies is presented. The new optical system has been developed. The possibility of the controlling the corneal surface with micron accuracy by OCT apparatus during the process of UV laser ablation is shown. OCT device is able to measure surface profile, thickness of the cornea and depth of removed tissue during process of UV ablation. Preliminary results on the determination of the surface profile and thickness of the non-modified by UV laser cornea of the alive human eye performed by OCT device with accuracy about 5 micrometers is shown. The results of the experiments on the measurement of the removed material depth on polymer film and cadaverous human eyes simultaneously with ablation process are described.

Paper Details

Date Published: 7 June 2001
PDF: 6 pages
Proc. SPIE 4245, Ophthalmic Technologies XI, (7 June 2001); doi: 10.1117/12.429258
Show Author Affiliations
Alexander M. Razhev, Institute of Laser Physics (Russia)
Sergei N. Bagayev, Institute of Laser Physics (Russia)
Valentin M. Gelikonov, Institute of Applied Physics (Russia)
Evgeny S. Kargapoltsev, Institute of Laser Physics (Russia)
Roman V. Kuranov, Institute of Applied Physics (Russia)
Ilya V. Turchin, Institute of Applied Physics (Russia)
Andrey A. Zhupikov, Institute of Laser Physics (Russia)

Published in SPIE Proceedings Vol. 4245:
Ophthalmic Technologies XI
Fabrice Manns; Per G. Soederberg; Arthur Ho, Editor(s)

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