There are a few main complications that patients should be aware of. Of course, other problems are possible. Here are a few:
1) Need for possible future LASIK procedure called an enhancement.
No laser system yields 20/20 vision or optimal results 100% of the time. To some degree this is due to variations in healing from person to person and even eye to eye in the same person. Our overall enhancement rate is very low, much less than 4% but is higher for some prescriptions. Your surgeon will advise you if you fall into one of those categories.
Increased dryness on a temporary basis is very common after Lasik. Permanently increased dryness is rare but can occur. Naturally, dryness after LASIK treatment is more common in people who had dryness prior to the surgery, and will often last up to several months.
Robbins Eye does extensive testing for the presence of Dry Eye prior to surgery. Additional therapy above and beyond artificial tears may initiated prior to or immediately after surgery. These include but are not limited to specially formulated Omega-3 preparations, Restasis, Xiidra and Punctal plugs.
3) Halos and night vision symptoms.
Night vision issues are much less of a problem since we began using the Allegretto Wavelight laser. This is a result of the proprietary treatment profiles and the manner in which the blend zones are managed. However, this still remains a problem with other lasers and can still infrequently occur even with the latest technology.
Everyone sees some degree of halos at night whether or not they have had LASIK or not. You can prove this by looking at the full moon in the late evening when it is dark and you will notice that there is softness to the edge of the moon. This is call this a halo. When you view the full moon during the daylight, this softness is not present. When LASIK was in its infancy and when using older lasers, the halos were made worse in around 25% percent of patients. Although this uncommonly interfered with the ability to drive or live your life, it was annoying for some people.
After LASIK it is not unusual to experience a short-term increase in the night halos, lasting for weeks and occasionally longer. However, since switching to the Allegretto Wavelight system we rarely have patients with any significant haloing at night on a long term basis.