The topic Cylindrical Refractive Error you are seeking is a synonym, or alternative name, or is closely related to the medical condition Astigmatism.

Quick Summary:

• Astigmatism is an eye disorder caused by the irregular shape and curvature of the cornea or lens. It is classified as a refractive error of the eye
• Refraction is the bending of light when it passes through an object. Therefore, refractive error denotes a condition wherein the shape of one’s eyes does not allow the light to bend correctly, leading to blurred vision
• Individuals with Astigmatism have an unusually shaped cornea, and the light is focused on 2 different planes, which creates a blurred vision. The condition usually affects children and adolescents between 5-17 years of age, and adults over the age of 30 years
• There are many types of classification of Astigmatism. Chiefly, it is classified into the following two types:
  • Corneal Astigmatism (due to abnormal curvature of the cornea)
  • Lenticular Astigmatism (due to abnormal curvature of the lens)
• A family history of the condition, premature birth, low birth weight, and a recent eye surgery are some known risk factors for the development of Astigmatism
• Important causes for the condition include abnormal curvature and shape of the cornea or lens due to a variety of factors, such as keratoconus, which can result from injury to the eye
• Some common symptoms associated with this condition include blurring of vision, eye strain, headache, and dizziness. Astigmatism can lead to the development of amblyopia, also known as “lazy eye”
• Treatment for this condition depends upon its severity. While mild cases of Astigmatism may not require any treatment, the use of contact lenses or surgery, may be used to correct refractive errors successfully
• Contact lenses used for the correction of the condition can lead to abrasion of the cornea. Corrective surgery may also potentially lead to infections, redness, and vision problems
• Reading in proper light, avoiding eye strain, getting one’s eyes examined regularly if one is at risk for Astigmatism, are some known methods for preventing this eye condition
• Astigmatism is known to change with age, and therefore, adjustment of lenses or other treatment measures may be required. The prognosis is considered to be good, if one keeps up with treatments and has a regular follow-up. Surgery is generally reported to correct the condition

Please find comprehensive information on Astigmatism regarding definition, distribution, risk factors, causes, signs & symptoms, diagnosis, complications, treatment, prevention, prognosis, and additional useful information HERE.