الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
LASER PHOTOPHACOFRAGMENTATION IN CATARACT SURGERY Laser has many uses in ophthalmology and is generally known ’be somewhat safe and effective. This encourages investigators to dy laser sources for the removal of the cataractous lens. Since the ultrasonic phacoemulsificalion has many problems, IUding concern about the safety of the energy released at the tip t possibly affect non-target tissues, such as the iris, posterior psule and corneal endothelium. In 1981, Aron Rosa performed preoperative anterior o’psulotomy with Nd: YAG laser. She stated that it might be ’ossible to Use Nd: YAG laser for photodisruption, or photofra¬ of the lens nucleus prior to standard ultrasonic hacoemulsification while leaving the anterior capsule intact. In 1983, Trokel & Coworkers first reported using the UV laser 193 nm excimer ) in corneal surgery. In 1985, Puliafito & Collaborators studied the interaction of 93 nm and 248 nm excimer laser energy with human cadaver and bovine corneal and lens tissue. In 1986, Nanev;cz et al compared the interaction of 4 excimer lasers (193 nrn argon flouride, 248 nm krypton fluroide, 308 nm xenon chloride and 351nm xenon flouride) with bovine lenses. Ablation of the lens tissue was accomplished with all.