Surgery – Instruments – Light application
Patent
1997-01-08
2000-05-09
Shay, David M.
Surgery
Instruments
Light application
606 2, 606 3, 606 11, 606 13, A61N 506
Patent
active
060597720
ABSTRACT:
A non-invasive apparatus and method for treating open angle glaucoma in a human eye comprises thermally ablating a targeted region of the trabecular meshwork of a human eye by irradiating the region with a beam of pulsed laser radiation. The beam of pulsed radiation has a wavelength between 350 and 1300 nanometers, energy of 10 to 500 millijoules per pulse, and pulse duration of 0.1 to 50 microseconds. The beam is non-invasively delivered gonioscopically through the cornea onto a targeted region of the trabecular meshwork. The targeted region of the trabecular meshwork is illuminated at a spot size of between 50 and 300 microns in diameter.
REFERENCES:
patent: 3828788 (1974-08-01), Krasnov et al.
patent: 4791927 (1988-12-01), Menger
patent: 5549596 (1996-08-01), Latina
Moulin et al.; Trabeculoperforation? Trabeculoretraction? Trabeculoplasty?; Ophthalomologica, Basel 191:73-83 (1985).
Hill et al.; Laser Trabecular Ablation (LTA); Lasers in Surgery and Medicine 11:341-346 (1991).
Goldschmidt et al.; Theoretical Approach to Laser Trabeculotomy; Med. Phys. 5(2) 92-99 (1978).
Melamed: Nd: YAG Laser Trabeculopuncture: Obstacles and Hopes on the Way to Glaucoma Treatment; Opth. Laser Therapy 2(4) 227-237 (1987).
M. Krasnov; Laseropuncture of Anterior Chamber Angle in Glaucoma; Am. J. Ophthalmology 75(4) 674-678 (1973).
Del Priore et al.; Long-Term Follow-Up of Neodymium: YAG Laser Angle Surgery for Open-Angle Glaucoma; Ophthalmology 95(2) 277-281 (1988).
Robin et al.; Q-Switched Neodymium-YAG Laser Angle Surgery in Open-Angle Glaucoma; Arch. Ophthalmol 103: 793-795 (1985).
M. Krasnov; Q-Switched Laser Iridectomy and Q-Switched Laser Goniopuncture; Adv. Ophthal. 34: 192-196 (1977).
B. Witschel et al.; Experimental Studies on Laser Trabeculo-Puncture; Adv. Ophthal. 34:197-200 (1977).
F. Fankhauser et al.; Thermal Effects on the Trabecular Meshwork Induced by Laser Irradiation: Clinical Implications Deduced from Ultrastructural Studies on the Macaca Speciosa Monkey; Trans. Opht. Soc. U.K. 105:555-561 (1986).
van der Zypen et al.; The Ultrastructure Features of Laser Trabeculopuncture and Cyclodialysis; Ophth. 179:189-200 (1979).
S. Venkatesh et al.; In Vitro Studies with a Pulsed Neodymium/YAG Laser; British J. of Ophth. 69:86-91 (1985).
Kitazawa et al.; Q-Switched Nd: YAG Laser for Developmental Glaucoma; Ophthalmic Surgery 13(2): 99-100 (1985).
Melamed et al.; Nd: YAG Laser Trabeculopuncture in Angle-Recession Glaucoma; Opth. Surgery 23(1): 31-35 (1992).
Melamed et al.; Neodymium: YAG Laser Trabeculopuncture in Juvenile Open-Angle Glaucome; Opth. 94(2):163-170 (1987).
Vogel et al.; Die Ablation des Trabekelwerks; Klin. Mbl. Augenheilk 197:250-253 (1990).
Meyer et al.; Corneal Endothelial Damage with Neodymium: YAG Laser; Ophthalmology 91(9): 1022-1028 (1984).
Gaasterland et al.; Long-Term Effects of Q-Switched Ruby Laser on Monkey Anterior Chamber Angle; Invest. Ophth. & Vis. Sci. 26(2):129-135 (1985).
Wickham et al.; Physiological Effects of Laser Trabeculotomy in Rhesus Monkey Eyes; Invest. Ophtalmol. Visual Sci. 16(7):624-628 (1977).
Lowery/Simon Abstract; Gonioscopic Laser Trabecular Ablation . . . and Scanning Electron Microscopy (1994).
Senft et al.; Neodymium-YAG Laser Goniotomy vs Surgical Goniotomy; Arch. Optthalmol 107:1773-1776 (1989).
Hsia James C.
Lowery Joseph A.
Melamed Shlomo
Candela Corporation
Shay David M.
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