Astigmatism is a vision condition in which light entering the eye is unable to be brought to a single focus, resulting in vision being blurred at all distances. Astigmatism is not a disease, but rather, a vision condition that is quite common. It often occurs in conjunction with other refractive errors like nearsightedness and Farsightedness. The causes of this irregular shape vary. In some cases, it may be hereditary or it may result from such factors as pressure on the cornea, incorrect posture or an increased us of the eyes for close work.
Most people have some degree of astigmatism.
However, only individuals with moderate to highly astigmatic eyes usually need corrective lenses. People with significant amounts of astigmatism will usually have blurred or distorted vision. Those with mild astigmatism may experience headaches, eyestrain, fatigue or blurred vision at only certain distances. A comprehensive eye examination by your doctor of optometry will include testing for astigmatism. Astigmatism can generally be optically corrected with properly prescribed and fitted eyeglasses or contact lenses.