LaserSight: World's first solid state PRK laser.ORLANDO, Fla.--(BUSINESS WIRE)--Aug. 24, 1995--LaserSight announced today that it has developed the world's first totally solid-state laser for photorefractive keratectomy (PRK PRK photorefractive keratectomy. Photorefractive keratectomy (PRK) A procedure that uses an excimer laser to make modifications to the cornea and permanently correct myopia. ). As opposed to first-generation excimer gas lasers for PRK such as those manufactured by VISX, Inc. and Summit Technologies, Inc., the LaserSight solid-state laser is small, economical, and user-friendly. By using the advanced integrated tracking-scanning delivery system developed for the LaserSight Mini-Excimer, the solid-state LaserHarmonic achieves unprecedented speed and accuracy. Unlike the photo etching of iris diaphragm delivery systems used by large gas excimer lasers, the LaserSight galvanometric gal·va·nom·e·ter n. An instrument used to detect, measure, and determine the direction of small electric currents by means of mechanical effects produced by a current-carrying coil in a magnetic field. delivery system achieves a photo-polishing of the surface of the cornea. In a preclinical study performed at the Bascom Palmer Eye Institute and published in Ophthalmology, the official publication of the American Academy of Ophthalmology The American Academy of Ophthalmology (AAO) is a medical association of ophthalmologists–medical doctors (MDs) specializing in eye care and surgery). The group is based in San Francisco, California. , in May 1994, a prototype of the 213-nm solid-state laser was demonstrated as a viable alternative to the excimer laser for PRK. LaserSight holds the U.S. patent for solid-state laser use for PRK. The multi-wavelength LaserHarmonic photo-polisher consists of a small, 200 hertz Nd:YAG fundamental laser which measures 1 1/2" x 1 1/2" x 4" and three frequency conversion crystals. The fundamental wavelength (1064 nm) could be used for posterior capsulotomy capsulotomy /cap·su·lot·o·my/ (kap?su-lot´ah-me) incision of a capsule, as that of the lens, the kidney, or a joint. cap·su·lot·o·my n. upon 510(k) approval in the United States. The fifth harmonic at 213 nm for PRK requires a PMA PMA (papillary-marginal-attached), n a system of epidemiologic scoring of periodontal disease devised by Schour and Massler in which the symbols denote the areas involved in gingival inflammation. PMA Progressive muscular atrophy . On July 20, 1995 at the FDA FDA abbr. Food and Drug Administration FDA, n.pr See Food and Drug Administration. FDA, n.pr the abbreviation for the Food and Drug Administration. Ophthalmic Advisory Committee, testimony recommended that the PMA approval process for PRK be significantly simplified and shortened. CONTACT: LaserSight Incorporated Robert Qualls, Chief Executive Officer 803/768-3505 or Gregory L. Wilson, Chief Financial Officer 314/469-3220 or Marti Benfield, Investor Relations 314/469-3220 |
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