Advanced Surface Ablation (ASA)

Since its approval in 1999, LASIK had served as the procedure of choice for most refractive surgeons, as it allowed patients to achieve functional vision quite rapidly, at times even a few days after treatment. But, LASIK requires cutting the cornea to produce a superficial flap at a depth of about one-fifth of the cornea’s thickness. As a consequence, some side effects on occasion would take longer to resolve. At present, development of new types of refractive surgeries, collectively referred to as advanced surface ablations (ASA), have allowed doctors and patients to circumvent the need for doing any cutting at all. These treatments include, among others: LASEK, epi-LASIK or e-LASIK; SBK; and, the gold standard that is outperforming them all, advanced PRK (Photorefractive Keratectomy), or No-Cut LASIK. Visual improvement with advanced PRK now closely rivals LASIK, usually taking a few days to a week. The great advantage is that there are none of the side effects associated with LASIK. More and more surgeons now prefer no-cut laser vision correction, as visual outcomes are now exactly the same as with LASIK.