The following information provides you with an understanding of the risks so you can make an informed decision. Corneal haze what the doctor sees under the slit lamp results from the superficial cornea's healing reaction after contact with a laser. An ophthalmologist can measure the haze response of a patient's cornea under a slit lamp, but patients' experiences of haze vary. Other risks reported in studies prior to 1995 include corneal damage leading to permanent corneal scarring or swelling, droopy eyelid, contact lens intolerance and persistent discomfort. The majority of complications recorded in the early studies were intra-operative.
Researchers expect further reductions as instrumentation becomes more sophisticated.