Astigmatism is a widespread eye-related problem that arises due to the cornea being unable to properly focus an image onto the retina. As a result, one suffers from the blurred image. Astigmatism takes its shape from an irregular curvature of the cornea. It is a type of refractive error. Astigmatism manifests in nearly every individual to some degree. By wearing cylindrical lenses, Astigmatism can be solved. Astigmatism is hereditary in nature and the genesis of the problem lies at the birth stage itself. In a majority of cases, Astigmatism is not spotted among school-going kids.
If left undetected, it can lead to a series of problems like:
It is a clear sign of Astigmatism when the child is unable to visualize some pattern or picture with clarity. Refractive errors such as myopia and hyperopia may be contributing to the problem of Astigmatism. When there is a noticeable change in the vision of a person, instantaneously he/she should consult the ophthalmologist. Irregular astigmatism crops up due to the condition of Keratoconus, in which the cornea becomes thinner and takes the shape of a cone.
The treatment for astigmatism lies is using contact lenses and eye glasses. In lesser magnitude of the problem, there is no necessity to take the treatment. The patient will take at least a week time to get used to the lens prescribed by the doctor.
Irregularly-shaped lens, positioned on the backside of cornea can cause astigmatism. The problem can develop either in the post eye surgery or an injury to the eye. Subsequent to the problems of pressure exerting from the eyelids on the cornea, increased use of the eyes for close work can trigger the problem of astigmatism.
There are two types of astigmatismsuch as: