What are different types of astigmatism?

There are two primary types of astigmatism: a regular or cornea that results from an irregular corneal surface that should be smooth; and irregular or lenticular, resulting from an irregularly shaped lens around the cornea. However, regular astigmatism consists of five different types. The difference arises as a result of how each eye is classified. The level of myopia or nearsightedness and foresight or hyperopia determines the type of regular astigmatism in each eye. The state degree is determined by the severity of the distortion of the cornea or lens. Chornea Misshapen can distort the image to two points instead of a single picture. It is a determination of which eye is affected, or to which level that determines the type of regular astigmatism that the patient has. If one eye is normal and the other is short -sighted, the diagnosis is a simple myopic astigmatism. Simple hyperopic astigmatism is the result of normal vision in one eye associated with foresight in the other.

compound myopic or sMeduated hyperopic astigmatism occurs when both eyes are either short -sighted or far -sighted, with respect. When one eye is short -sighted and the other prudent, mixed astigmatism is diagnosed. Irregular astigmatism causes distortion of light from the uneven corneal surface, which usually manifests itself as multiple images from one object.

both regular and irregular astigmatism can be hereditary. Therefore, parents with the condition should be regularly checked by children. Many experts believe that everyone was born with a certain level of astigmatism; However, it is only about whether it increases over time and causes a slight to serious condition or remains the same as in the case of mild astigmatism. Studies have shown that this condition is more or less expected in some races.

treatment of regular astigmatism can be achieved using contact lenses or prescription glasses. Although in the past wouldLK used traditional hard lenses, now there are soft lenses, called toric lenses and flat lens. Laser assisted in-Situ keratomileusis or or lasik surgery is also available for treatment.

irregular astigmatism can generally be corrected only by contact lenses or refractive surgery. Refractive surgery is adapted to the individual because the procedure must solve specific discrepancies in the eye. No two patients have the same abnormalities.