Hi, I recommend to not do lasik unless contacts and glasses don't work. Contacts and glasses give perfect vision without surgery and doesn't leave scars. If you change prescription you jyst buy a new lenses and have perfect vision again. The flap never heals, unfortunately lasik doctors don't inform patients about that. Google Glass lasik warning https://support.google.com/glass/answer/3064131?hl=en "If you’ve had Lasik surgery, ask your doctor about risks of eye impact damage before using Glass." http://androidheadlines.com/2013/05...r-glass-says-it-may-be-bad-for-your-eyes.html "The company goes on to advise people who have had Lasik eye surgery to avoid wearing the device. If you’re really eager to try, then Google recommends that you go to your doctor for final approval" Dr. Oz lasik flap warning https://www.youtube.com/watch?v=buf5ReMswTk http://lasikcomplications.com/flapdislocation.htm Dr. John Kanellopoulos: “There was evidence presented by Emory University’s Henry Edelhauser at this year’s Refractive Surgery Subspecialty Day at the Academy of Ophthalmology meeting that the LASIK flap never actually heals onto the underlying stroma, especially centrally... This was a real eye-opener for me..." (Review of Ophthalmology 2/1/2009) "To put it more simply, the corneal flap after LASIK provides no more corneal strength than the wearing of a contact lens." William Jory, MD. J Refract Surg. 2004 May-Jun;20(3):286. "Laser in situ keratomileusis is another surgery in which the flap is prone to traumatic dislocation because the interface does not seem to heal except at the edges." Source: Protective effect of LASIK flap in penetrating keratoplasty following blunt trauma. Canto AP, Vaddavalli PK, Yoo SH, Culbertson WW, Belmont SC. J Cataract Refract Surg. 2011 Dec;37(12):2211-3. "Although LASIK remains the most popular refractive surgical procedure, it is becoming apparent that corneal surfaces, cut to create the midstromal flap during surgery, fail to fully reunite postoperatively; surgeons can simply peel back an anterior corneal flap several years later. Such patients... are at risk for progressive visual disability due to general corneal weakness that may progress to ectasia or even traumatic displacement of the insecure flap." Source: Mi S, Dooley EP, Albon J, Boulton ME, Meek KM, Kamma-Lorger CS. Adhesion of laser in situ keratomileusis-like flaps in the cornea: Effects of crosslinking, stromal fibroblasts, and cytokine treatment. J Cataract Refract Surg. 2011 Jan;37(1):166-72. "Delayed trauma has been shown to cause flap defects,demonstrating that LASIK flaps remain vulnerable to traumatic dehiscence and dislocation even 6 or 7 years after surgery." Source: Roxana Ursea, MD and Matthew T. Feng, MD. Traumatic Flap Striae 6 Years After LASIK: Case Report and Literature Review. J Refract Surg. Vol. 26 No. 11 November 2010 Dr. George O. Waring III: "This means you can lift the LASIK flap indefinitely after LASIK. My longest personal LASIK flap lift is 12 years, and it was done very easily. We have performed biomechanical studies now at Emory up to eight years post-operatively and find that the strength of the lamellar wound is about 2 percent of the normal cornea." Source: Am J Ophthalmol. 2006 May;141(5):799-809. Peer Discussion: Corneal keratocyte deficits after photorefractive keratectomy and laser in situ keratomileusis. "The LASIK flap once cut may contribute little to the mechanical stability of the cornea and probably never completely adheres to the underlying stromal bed..." (O'Brart et al, 2007) ""I was in the middle of trephining a donor cornea, when it fell apart," he said. "Fortunately, we were able to send a new cornea right away, and the surgeon finished the operation," said Ronald E. Smith, MD, medical director of the Doheny Eye Bank in Los Angeles. Later, back at the eye bank, researchers examined the ruined cornea and determined that it had had LASIK." Source: Laura J. Ronge. LASIK Shatters Assumptions. EyeNet, August 2001. Read article "Another aspect of LASIK surgery is that during this procedure, a corneal flap is made, which will create lifelong lamellar corneal potential space." J Refract Surg. 2006 May;22(5):441-7. Galal et al. "However, this case illustrates that even 4 years following the procedure, the lamellar flap remains an inherently weakened area of the eye, susceptible to traumatic disruption." Source: Nilforoushan MR, Speaker MG, Latkany R. Traumatic flap dislocation 4 years after laser in situ keratomileusis. J Cataract Refract Surg. 2005 Aug;31(8):1664-5. "Your corneal flap will never adhere to the surface of the eye with quite the same strength it did prior to the surgery, so there is a rare but possible risk of the flap becoming displaced with sufficient force." Source (pg 4) Dr. Gary Conrad, Kansas State University Biology Professor: "It was once believed that the flap would re-adhere permanently. However, the unique connective tissue of the cornea and a lack of blood vessels limit its ability to fully heal even years after the procedure." Source "The corneal flap of approximately 160 μm, of one third thickness of the average cornea, has been shown to never heal fully by Seiler and Marshall (personal communication, June 26, 2000). Approximately 22 million corneal fibers are intersected, their severed ends never rejoining, meaning that the flap is held in place only by glycosaminoglycans and peripheral scar tissue. To put it more simply, the corneal flap after LASIK provides no more corneal strength than the wearing of a contact lens." Jory W. Corneal ectasia after LASIK. J Refract Surg. 2004 May-Jun;20(3):286. "Furthermore, if [LASIK] interface transparency is indicative of absent wound healing, one might expect that the interface remains a potential space and flap adhesion is impaired for the lifetime of the flap." (Ursea and Feng, 2009)