Treatment for astigmatism to improve your vision
Astigmatism is the most common of eye conditions, affecting an estimated 40 to 44 percent of the population. In many cases, astigmatism is very mild and is nearly unnoticeable, while in other cases it can be quite severe and will require correction. Though the condition can be present from birth, it's often not diagnosed in very small children until they begin certain activities like drawing, reading and writing, or until they recognize what it means to have difficulty seeing clearly.
Causes and Symptoms of Astigmatism
There are two main types of astigmatism, each with different causes. Corneal astigmatism is caused when the cornea part of the eye has an irregular curve, or more specifically, when one half of the cornea is flatter or steeper than the other. Lenticular astigmatism may be caused by a misshapen lens, which is the part of the eye located behind the cornea.
It's not really known why people are born with astigmatism, though some studies do show that there may be a link to heredity or to premature birth or low birth weight. In cases where astigmatism develops after birth, diabetes, eye injury or eye operation may be triggers.
Symptoms of astigmatism include blurred vision (both close up and far away), sensitivity to light, squinting, eye strain and headaches. These symptoms range from very minimal, with only a slight need to squint every now and then, to more severe, with extremely blurred vision and frequent headaches caused by eye strain.
Treatment for Astigmatism
Astigmatism is not a particularly serious condition, but it should be treated in order to restore proper vision. Treatment for astigmatism could include either of the following:
- Corrective lenses or astigmatism contact lenses. The best contact lenses for astigmatism are toric lenses, which have better light-bending properties.
- Surgery for astigmatism. The three types of astigmatism surgery are the same types of laser eye surgery used to treat other eye conditions—PRK (photorefractive keratectomy), LASEK (laser epithelial keratomileusis) and LASIK (laser in situ keratectomy). Pregnant women, diabetes sufferers, those for whom vision is still changing and those with other eye conditions are not considered suitable candidates for laser eye surgery.