Risks of Lasik
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As with any surgery, there are some risks associated with LASIK Eye Surgery. The most common of these, and for any vision correction surgery, is dry eyes. Over 30% of patients have complaints of dry eyes after the surgery, and possibly for several weeks thereafter. Many surgeons will send patients home with artificial tears to keep their eyes moist and comfortable for the few days and weeks thereafter, although the majority of patients do not complain of dry eyes this long after the procedure. In rare cases, the patient may need to return to the surgeon to have their tear ducts reexamined to assure there was no damage done to the mechanisms during surgery.
Patients may also experience other unwanted vision side effects, such as glares, halos, or difficulty with night vision. These most occur around direct sources of light, and most people who experience this are predisposed to such conditions with their vision problem, and will most likely be aware of their propensity for this side effect prior to surgery.
Other potential risks include under- or over-correction of vision, visual acuity variability, debris or new growth under the flap, vitamin D deficiency from sun avoidance, double vision or ghost images, or induced astigmatism. If you're concerned about the prevalence of these risks, please talk to your doctor about your potential for developing such side effects.