''Laser Surgery'' #_# @_@%_%=$_$

Laser are used to re-attach retinas, remove contaracts, stop bleeding, and reshape corneas.
Re-attach retinas: A laser can sometimes be used to weld the piece of retina back in place, if it's detached from inside of the eye. It can also prevent detachment from happening again.
Remove contaracts: This can occur with age. ( naturally ) It's when the lens has becaome cloudy. The laser can cut throught the cornea and replace the lens with a synthtic lens.
Stop bleeding: The power from th elaser is very intense, that is can stop the bleeding from blood vessels, and helps reduce the bleeding when operating the surgery.
Reshape cornea: The laser can also correct the person's vision by reshaping the cornea. The laser allows the surface of the cornea to weaken, so it would be foled back. The surgeon will then change the shape inside of the cornea. After the correction, the outer surface can be restored to it's original place. It's not painful during the surgery, and are often completed only a few minutes. ( '' Like all types of medical precedures, there are some risks involved. Because laser eye surgery is only a few decades old, long term risks and benefits are not yet known." )