Well, generally speaking, lasik eye surgery can be the safest eye surgery. And in the surgery, a laser underneath a corneal flap to reshape the cornea can be the most common way. And for the function, you should know that it can treat refractive errors, improve vision, and reduce or eliminate the need for glasses or contact lenses. And that is why so many people taking it. But on the other hand, after the surgery, if you do not take good care of your eyes, some side effects can occur too. For example, your eyes will be painful, even red, burning, if your eyes are infected by some bacteria. Also, in some cases, double vision can be possible. So just be careful about it.