Questions about LASIK

Astigmatism

With astigmatism, the rays of light do not converge into a single point but form a line on the retina. There are various types of astigmatism included regular, mixed and irregular astigmatism. Currently, excimer lasers in the US are approved for treatment of regular and mixed astigmatism. Recent advances in technology now allow for the therapeutic treatment of induced irregular astigmatism. In the future, this application may be expanded to include all types of irregular astigmatism. Patients who believe they have astigmatism should discuss this subject in further detail with their physician to gain a better understanding of the mechanisms in their case. Astigmatism can be treated with LASIK, PRK or AK.