The big breakthrough in this kind of surgery was laser. Before that using a knife caused or could cause halo night vision issues.
My wife always had to wear thick glasses for being near sighted. They told her up front that afterwards she'd still have to wear reading glasses, which was no problem. She's been 20-20 distance for 10 years now and thinks it was a great choice for her.
They did both eyes at the same time. I was concerned, but they said they know immediately if something goes wrong, like the laser slices your eye ball in two
, kidding, but they did say the first part, they would know, but they also emphasized that the procedure is very safe.
As I recall, depending how how thick your cornea is, they either cut a flap and alter the surface of the eye under the flap. Afterwards the flap is just flapped back into place so you have to be careful not to dislodge it until it reattaches. If your cornea is not thick enough they sand down the surface of your eye, which I understand is more painful in the aftermath. My wife had the flap. Next day she had 20-20 and minimal discomfort.
My wife always had to wear thick glasses for being near sighted. They told her up front that afterwards she'd still have to wear reading glasses, which was no problem. She's been 20-20 distance for 10 years now and thinks it was a great choice for her.
They did both eyes at the same time. I was concerned, but they said they know immediately if something goes wrong, like the laser slices your eye ball in two
As I recall, depending how how thick your cornea is, they either cut a flap and alter the surface of the eye under the flap. Afterwards the flap is just flapped back into place so you have to be careful not to dislodge it until it reattaches. If your cornea is not thick enough they sand down the surface of your eye, which I understand is more painful in the aftermath. My wife had the flap. Next day she had 20-20 and minimal discomfort.