Cold-laser microsurgery of the retina with a syringe-guided 193 nm excimer laser

Aaron Lewis; Daniel V. Palanker; Itzhak Hemo M.D.; Jacob Pe'er M.D.; Hanan Zauberman M.D.

doi:10.1117/12.43968

1 June 1991 Cold-laser microsurgery of the retina with a syringe-guided 193 nm excimer laser

Aaron Lewis, Daniel V. Palanker, Itzhak Hemo M.D., Jacob Pe'er M.D., Hanan Zauberman M.D.

Proceedings Volume 1423, Ophthalmic Technologies; (1991) https://doi.org/10.1117/12.43968
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

This paper presents a methodology for guiding a radiation of ArF excimer laser in a liquid surrounding and confining it to the spots that can be varied in dimension from submicron diameters to tens and hundreds of microns. The approach described here is to confine and guide the excimer laser with variable diameter tapered tubes, thus opening the possibility of applying this laser in vitro-retinal surgery using endo laser techniques. Presently because of a lack of methods to guide the 193 nm ArF radiation in liquid this laser is used exclusively in ophthalmology in topical applications such as in corneal sculpturing. The methodology presented in this paper resolves this problem in a unique way and with impressive results. Specifically, the authors show that with this syringe needle guided excimer laser it is possible to accurately remove retinal tissue without any detectable damage to surrounding cells. Applications of this new technology in retinal surgery are discussed.

Citation Download Citation

Aaron Lewis, Daniel V. Palanker, Itzhak Hemo M.D., Jacob Pe'er M.D., and Hanan Zauberman M.D. "Cold-laser microsurgery of the retina with a syringe-guided 193 nm excimer laser", Proc. SPIE 1423, Ophthalmic Technologies, (1 June 1991); https://doi.org/10.1117/12.43968

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KEYWORDS

Excimer lasers

Tissues

Retina

Laser tissue interaction

Liquids

Microsurgery

Laser ablation

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