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Biotech / Medical : SNRS- Sunrise Technologies -- Ignore unavailable to you. Want to Upgrade?

To: David Jones who wrote (1742)	10/26/1998 6:37:00 PM
From: emil	Respond to of 4140

except research for current information. here is a clip from a prk article: Astigmatic Keratotomy ("AK") is a commonly used variation of radial keratotomy. Employing parallel incisions in the cornea's outer zone, AK is specifically designed to reduce naturally occurring astigmatism or that which may follow injuries to the cornea, corneal transplants or cataract surgery. AK is used either alone or in combination with RK and PRK when so indicated. Among the treatments conceived thus far, the most promise for farsighted individuals to be rid of glasses or contact lenses rests with yet another type of laser now under development. By precise application of tiny spots of laser heat upon the cornea's outer zone, the HOLMIUM LASER produces a steepening, rather than a flattening, of the central corneal curvature, restoring sharp focus .