how long does laser eye surgery lasts

how long does laser eye surgery last for till eye sight starts deterioting again?

Its different for everyone. You could ask the same questions regarding glasses. How long will these glasses be adequate before I will need a new prescription. Eyes change. Your eyes may stay the exact same shape for the rest of your life, in which case your eye sight may be fine for a long time, or your eyes may change within a year. There is no set time and even if your vision does get a little worse, it will still most likely be better than if you had not had the surgery.