Most of the million-plus people having LASIK each year to correct their vision are happy with the results, according to a 15-year literature review that indicates most reasons for discontent could be resolved with more patient education before surgery.
94 percent of patients participating in major trials across the country have at least 20/20 vision following the surgery that reshapes the cornea, the front part of the eye that works with the lens to focus light onto the retina. Also, 98 percent of patients in major trials had 20/25 vision or better, which means they can read one less line on the eye chart, and nearly all patients would recommend the procedure to a friend.
Discontent with LASIK can result from problems with night vision, including night glare, such as halos around lights. About 25 percent of patients have some night vision disturbances in the first few weeks after surgery and about 18 percent feel their night driving is impaired in initial few weeks after surgery.
The good news is night-vision problems typically resolve within a few months – patient complaints went down from 25.6 percent to 4.7 percent from month one to month 12 – but the cause remains unclear, Dr. Ambati says. It may be that pupils dilate at night to let in more light beyond the corrected area of the cornea. Newer lasers enables surgeons to enlarge the treatment zone “to an area larger than most folks’ nighttime pupil,”.
We would publish series of testimonials from actual patients in the coming weeks indicating their experience. The first article of the series is here.