Why do they do PRK laser eye surgery one eye at a time?
Answers: It is for safety. What they are worried nearly is a complication occurring which is not apparent at the time of the surgery, but which appears a few hours or days after that, and which can occur surrounded by both eyes at once if both eyes were treated. An infection is one such complication. If an infection occur, it usually will occur in the first two or so days postoperatively. An infection in both eyes, if severe, can organize to scarring, loss of vision, and even a stipulation for a corneal transplant. Fortunately, the risk of an infection occurring in even merely one eye is remote, but not zero.
Also, it can filch up to one week to regain full vision contained by the eye that the surgery was done on. This means of access you have one functioning eye while the other recover.
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