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Proceedings Paper

Cataract surgery with a mid-infrared endo-laser system
Author(s): Qiushi Ren; Gabriel Simon; Raymond P. Gailitis M.D.; Jean-Marie A. Parel
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Paper Abstract

With most current cataract surgery techniques, an intraocular lens (IOL) is implanted in the capsular bag to emetropize the eye for distance vision. Modern IOLs are made of flexible materials (e.g., silicone and acrylic elastomers) allowing the surgeon to fold and insert the IOL through a smaller limbal incision (4 mm), thus reducing the number of sutures. When using a scleral pocket technique, suturing of such small wounds might not be required. Recently, IOLs having 2 foci (multifocal IOLs) have been introduced. These implants give the patient a second focal plane at normal reading distance, but the double image reduces both visual acuity and contrast sensitivity. However, with all present surgical techniques, the patient loses the natural ability to accommodate. By directing laser energy into a flexible fiber, cataract removal might be performed endoscopically while minimizing trauma to healthy tissue. Bath successfully demonstrated the use of the 308 nm XeCl excimer laser for cataract removal. A significant drawback, however, lies in the fluorescence induced by the 308 nm laser pulses which may cause significant retinal damage. The use of UV radiation also raises serious concerns about carcinogenesis and cataractogenesis risk to both the patient and the surgeon.

Paper Details

Date Published: 14 August 1992
PDF: 5 pages
Proc. SPIE 1644, Ophthalmic Technologies II, (14 August 1992); doi: 10.1117/12.137420
Show Author Affiliations
Qiushi Ren, Univ. of Miami School of Medicine (United States)
Gabriel Simon, Univ. of Miami School of Medicine (United States)
Raymond P. Gailitis M.D., Eye Care and Surgery Ctr. (United States)
Jean-Marie A. Parel, Univ. of Miami School of Medicine (United States)

Published in SPIE Proceedings Vol. 1644:
Ophthalmic Technologies II
Jean-Marie Parel, Editor(s)

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