Farsighted corrections and combinations of nearsightedness and astigmatism may take slightly longer. There are many valid reasons to consider laser vision correction, and an individual's motivation for considering laser vision correction should be discussed with the surgeon. However, refractive surgery can be an acceptable alternative to glasses or contacts in many individuals. Contact lens and glasses intolerance. Many people develop limitations to contact lens use due to allergy, dry eye, repeated infection, or swelling of the cornea.
Some people become limited in how long lenses are comfortable in their eyes.
Glasses can be problematic also due to visual distortions and difficulty in frame comfort. Refractive surgery can mean freedom from these problems. Certain occupations require a rapid response time, such as emergency personnel. In these cases, minutes spent searching for glasses or inserting contacts lenses could be critical. Other professions involve exposure to airborne irritants which can make contact lens use impossible.