There are top 4 disadvantages of Lasik Surgery. 1. Repeat Surgeries
This could be viewed as both a pro and a con to having Lasik. This type of eye surgery doesn't always produce the optimum level of vision correction on the first attempt. So additional follow-up procedures may be necessary to further improve the patient's vision. That's the down side. The up side is the very fact that patients may undergo repeat treatments for even better vision. Of course, with each additional procedure, there is an extra medical bill as well.
2. A Lot of Aftercare
After a Lasik procedure, a patient will have to follow a regimen of medicine usage, as well as close monitoring by the eye surgeon. In some cases, this aftercare process can go on for several months. While this post-Lasik treatment can certainly be inconvenient, most patients view it as a small price to pay for better vision.
3. Potential Halos and Glares
In some cases, patients of Lasik surgery experience glare or halos around objects, especially at night and in the days immediately following your procedure. The most common reason for this is a corneal flap that did not adhere correctly after it was replaced by the surgeon. In most cases, halos and glares will subside within the first month after surgery. In other cases, additional treatment is needed to correct the problem.
4. Not Always Covered by Insurance
Insurance companies are seemingly random when it comes to Lasik eye surgery. For everyone company that covers the procedure, there's another company that does not. Some insurance providers consider Lasik to be an elective surgery that is not necessary (since the vision problem can be corrected with glasses or contact lenses). If the provider does not cover the surgery, then the patient must either pay out of pocket or switch insurance companies altogether.
Source: http://ezinearticles.com/?Top-4-Disadvantages-of-Lasik-Eye-Surgery&id=1051236