If you have astigmatism, without corrective lenses you experience overall blurry vision, shadowing, or distortion of your vision. Astigmatism is a refractive error caused by the cornea having an oval, or football shape resulting in light focusing on multiple points around the retina rather than a single point on the retina.
How LASIK Treats Astigmatism
The LASIK correction of astigmatism is accomplished by smoothing out the irregularities of the cornea at the precise points of astigmatism, thus allowing light to focus correctly on the retina. During the procedure, pulses of cool, ultra-violet light are emitted from a computer-guided Excimer laser to remove corneal cells according to your unique prescription.
Click below to learn more about LASIK and PRK for the correction of astigmatism.