Treatment of your distance corrective requirement will likely give you clear distance vision without glasses, but you will probably still need glasses for reading and close work . Most professionals will not treat people under the age of 20, but there is no upper limit in age. It is not for everyone. There are certain conditions under which PRK is not recommended and these can be detected when you have your pre-operative examination as well as a Corneal Map done. The most common contraindication to PRK is a misunderstanding of what the procedure can and cannot do for you.
Vision is corrected by reshaping the eye.
This is done by removing a very thin layer of tissue from the front surface of the eye called the cornea - placing the lens power of your glasses on the cornea. Persons being treated remain remarkably comfortable though the entire procedure, requiring only a few anesthetic drops in the eye to ensure a virtually pain-free procedure that takes only minutes. No needles are used and with current technology there is very little discomfort after the procedure. That depends on whether you have your eyes done one at a time or both together. You would have to be professionally examined to determine what is best for you.