What is irregular astigmatism?
irregular astigmatism is a type of eye disorder in which the surface of the cornea is disturbed by peaks, ridges, valleys and other abnormal shapes. If the cornea is not evenly smooth, the light cannot be collected and focused on the lens correctly. A person with a slight irregular astigmatism may have slightly blurred or distorted vision, while a serious case can cause more images that are disorienting and sometimes debilitating. The condition is generally more difficult to treat than other types of astigmatism, but specialized contact lenses and advances in surgical techniques allow many patients to enjoy at least some relief from their symptoms.
Most people who have astigmatism suffer from regular diversity. In regular astigmatism, the cornea is more or less smooth, but is on abnormal curvature. The light enters the lens in steeper or shallower angles than usual, leading to slight distortion. In the case of irregular astigmatism, the problem of the angle may or has been.Instead, visual impairment results from inconsistencies at certain points on the corneal surface. Hrpovka and decreases break light in unusual and sometimes unpredictable ways.
The basic causes of irregular astigmatism are not always easy to determine and many possible problems can lead to disorder. Some people have irregular astigmatism since birth due to genetic factors. Others develop problems later in life due to eye injury or serious infections. In some cases, surgery may also lead to accidental corneal surface damage to the correction of regular astigmatism or other eye disorders.
A person who has irregular astigmatism usually has difficulty focusing on and far. The condition is often worse in one eye than the other and holding one eye closed can help temporarily see better. If the cornea is seriously malformed, the light can be filed so thatThe same image occurs several times at different points in the lens, causing double or triple vision in one eye. Visual problems can lead to symptoms such as headaches, nausea and balance problems.
While regular astigmatism can usually be corrected with glasses, contacts or surgical transformation, irregular astigmatism is usually less sensitive. When improving a slight problem, a useful type of contact called a rigid gas lens may be a useful contact. The lens, which is curved evenly, rests on the top of the cornea and reduces how many bumps and dents affect the incoming light. Fine laser operations can also be performed to try to smooth out the surface. The results of surgery are not always perfect, but the procedure helps most people to see more clearly.