A person with astigmatism sees objects distorted because the light rays are only partially focused on the retina. Only part of the image is projected onto the retina. Astigmatism can occur on its own or in combination with nearsightedness (myopia) or farsightedness (hyperopia).<\/p>\n\n\n\n
Astigmatism can be corrected by flattening the cornea on the most curved side and\/or curving the flattest side, so that the cornea becomes perfectly round.<\/p>\n\n\n\n
This condition can start in childhood or develop later in life. A simple correction is possible if it is the cause of vision problems. Some signs and symptoms of astigmatism can include headaches, eyestrain, difficulty reading, and general fatigue.<\/p>\n\n\n\n
Depending on the severity, glasses or contact lenses may be needed. Refractive surgery with a laser can correct astigmatism up to 5 diopters.<\/p>\n\n\n\n