In PRK, because the laser removes tissue from the surface of the eye, the body will attempt to fill in the defect much like if you had a cut on your hand. Since corneal tissue has different healing properties, the process can normally be regulated with the use of topical steroid drops which patients may be required to use over a one-month period.
In LASIK, these drops are only used for a week. These drops will rarely cause any problems. However, eyes must be monitored on a monthly basis to fine tune the drop dosage and check for any unwanted side effects such as delayed or too rapid healing and elevation in eye pressure (glaucoma). Antibiotic drops are also used for about a week with both procedures. Please see - Post Operative Instructions.
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