Astigmatism: it's a type of refractive error of the eye. Refractive errors cause blurred vision and are the most common reason why a person consults with an ophthalmologist.
CausesPeople are able to see because the front part of the eye (cornea) can bend (refract) the light and focus it on the back surface of this organ called the retina. The rays of light do not focus clearly on the retina, the images that you see can be blurry. With astigmatism, the cornea is abnormally curved. This curve causes the vision to be out of focus. The cause of astigmatism is unknown. It is usually present from birth. Often, astigmatism occurs together with myopia or hyperopia. If the astigmatism worsens it may be a sign of keratoconus.
symptom
Astigmatism makes it difficult to visualize subtle details either near or far, which is easily diagnosed through a series of tests performed in the clinic. It is possible that mild astigmatism does not need correction. Laser surgery can help change the shape of the corneal surface to correct astigmatism, along with myopia or farsightedness, which can usually eliminate or greatly reduce astigmatism.
Possible complications in children, if astigmatism is not corrected can cause amblyopia.
When to contact a medical professional
Request an appointment with your doctor or ophthalmologist if your vision problems get worse or you do not
present improvement with glasses or contact lenses.