In general, there is no strict age limit for refractive surgery. The suitability for surgery depends on the stability of the refractive error rather than the specific age of the individual. Individuals under the age of 18 can undergo surgery if their refractive error is stable. Similarly, individuals over the age of 50 can also be candidates for surgery, as long as other potential issues, such as the presence of cataracts or retinal injuries, have been ruled out through proper evaluation.Yes, refractive surgery with the Excimer Laser can be performed to correct Astigmatism. This surgical procedure is capable of addressing various visual defects, including Astigmatism, as well as Myopia, Hyperopia, Mixed Astigmatism, Irregular Astigmatism, and Presbyopia.