Had a very good optom who has done my glasses for the last 15 years and solved many a aviation-related specs problem. He became a qualified referrer for laser eye surgery (early cold laser LASIK days) and we discussed the percentages. Most were "acceptable" to me (< 2-3%), but the shocker was night vision - flaring of point light sources - at 15% ... couldn't accept that since I fly and drive a lot at night. I've been stable at -2.5 dioptres for over ten years now so not in any rush.
Last year or so in Singapore there was a new technique using 3D computer/laser mapping which would yield substantially better results overall, but the cost was quite high S$5K+/eye from memory. Know some of the surgeons who do it ... they wear glasses ... won't undergo the surgery themselves ... dunno whether to consider that an endictment of the surgery or not
