close. a laser burns away cornea, changing the amount of tissue that light goes thru in order to correctly REFRACT (not “reflect”) light

“But how would the surgeon know how much to cut off?”

computers & expensive equipment

“Also, if your eyes can degrade to the point at which you become legally blind, then how come legally blind people don’t get vision correcting surgery?”

b/c the term “legally blind” is misused. “legally blind” means a person has some condition that makes them unable to see well. NO LENS helps. glasses dont help, contacts dont help, lasik doesnt help. people say they’re “legally blind w/o their glasses on”, but thats not what the term “legally blind” means. legally blind means NO GLASSES HELP.

when eyes “degrade”, they may get to be a “worse” prescription, but thats all. its really no big deal. stronger glasses/contacts. so what? that doesnt make them “legally blind”.

so, no. legally blind people dont get lasik. they cant b/c it wont help. princeidoc

Those corrections only work as long as there is enough tissue on the eye to support the required correction. Large corrections require the cuts to be too big. OracleDave