Definition: Advanced Surface Treatment is a procedure for correcting the shape of the cornea, allowing light to focus more clearly in the eye and bring vision closer to normal for people who have myopia (nearsightedness), hyperopia (farsightedness), with or without astigmatism.
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AST could reduce or eliminate the need for contact lenses or glasses. Patients intolerant of contact lenses often pursue this option. Good candidates for the procedure have stable vision, low to moderate myopia, and no other eye problems. Diabetics or patients with other medical illnesses may not be candidates.
Athletes, firefighters, law enforcement officers, farmers, pilots and others who cannot wear glasses due to occupational requirements undergo AST for reduced dependence on glasses. People who desire a functional improvement in lifestyle may consider a surgical option to permanently improve vision.
The Procedure: An excimer laser is used to reshape the curve of the cornea. A computer is used to compute the depth and pattern of the tissue to be removed. It then delivers gentle pulses of concentrated, cool ultraviolet light beams, precisely focused, to correct the shape of the curve. The procedure is painless and visual recovery occurs over several days.
 A Refractive Surgery Procedure
The Laser Center
Dr. Val Zudans
Note: The information on this website is not a substitute for professional care. If you are having any problems with your eyes, you should see your ophthalmologist or optometrist for diagnosis and treatment.
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