Excimer laser-induced ablation in corneal surgery by a two-dimensional scanning method

Angela Unkroth; Karin Pachomis; Eberhard Welsch; Jens-Uwe Walther; D. Zimare; Ulf Krause

doi:10.1117/12.168728

15 February 1994 Excimer laser-induced ablation in corneal surgery by a two-dimensional scanning method

Angela Unkroth, Karin Pachomis, Eberhard Welsch, Jens-Uwe Walther, D. Zimare, Ulf Krause

Proceedings Volume 2079, Laser Applications in Ophthalmology; (1994) https://doi.org/10.1117/12.168728
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

We describe a new multi-purpose maskless method of corneal surgery based on the point-by- point scanning of a focused laser beam which allows the application of a low-energy excimer laser. The crucial scanning parameters (beam diameter, step width, overlap...) to achieve a smooth corneal surface have been investigated. A computer program for the simulation and optimization of the point-by-point scanning process has been developed and tested on contact lenses consisting of PMMA. In addition, a method of measuring the eye-movement by means of the computer-assisted interpretation of photographs was proved for its application in an eye- tracking-system.

Citation Download Citation

Angela Unkroth, Karin Pachomis, Eberhard Welsch, Jens-Uwe Walther, D. Zimare, and Ulf Krause "Excimer laser-induced ablation in corneal surgery by a two-dimensional scanning method", Proc. SPIE 2079, Laser Applications in Ophthalmology, (15 February 1994); https://doi.org/10.1117/12.168728

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