Astigmatism, commonly misunderstood as an eye health problem, is actually just a vision defect of the eye. Astigmatism results in multiple focal points on or near the retina and as a result vision becomes blurred. In a person suffering from astigmatism, the curvature of the cornea, which is ideally supposed to be spherical, becomes distorted. Since the cornea, as a result of this disease, has more than one curvature, light is focused in two different directions. Different locations and/or orientations of the curvatures result in different types of astigmatism.
Various options are available for the treatment of astigmatism today. Eyeglasses, special contacts and refractive surgery are the choices. For people with minor degrees of the disease, soft toric lenses can be used as corrective therapy. For a severe case of astigmatism, RGP contact toric lenses or eyeglasses may be used. Astigmatism, as mentioned above, can also be treated with the help of surgery. The different types of surgical treatments include Lasik Eye Surgery, Conductive keratoplasty, Orthokeratology and Astigmatic Keratotomy.
LASIK is a common method of Laser Eye Surgery for the Laser Vision Correction of astigmatism. In Lasik Astigmatism, the non-spherical cornea is reshaped by removing tissue. The Lasik surgeon carefully measures the thickness of the cornea and locates all the abnormal curvatures. These are then also verified by measuring the cornea with the help of an instrument called an aberrometer in order to find out any curvatures missed in the normal testing methods. In the Lasik treatment, the laser treats the eye in such a way that the curvatures of the cornea are leveled out and it achieves an almost spherical shape.
Lasik treatment for astigmatism is quite commonly used now-a-days. It is a widely practiced and safe treatment for astigmatism with an excellent success rate.