In my last blog, I discussed the PROWL (Patient Reported Outcomes With LASIK) Study, a comprehensive study of modern LASIK conducted by the FDA and the National Eye Institute, a part of the National Institutes of Health.  I reviewed that the PROWL study had shown that the incidence of glare actually fell by 3 months after modern LASIK compared to what it had been before LASIK with glasses or contacts. A patient in my Santa Barbara office recently asked me about halos at night after LASIK. It turns out the PROWL study also looked at the incidence of halos after LASIK and found that it was lower by 3 months after LASIK than it had been prior to LASIK with glasses or contact lenses. These outstanding results are commonplace today with the most modern forms of LASIK, thanks to advances in LASIK technology, particularly in customized wavefront LASIK.