Astigmatism

The cornea, located in the most anterior layer of the eye, has the task of protecting the eye from external factors and correctly refracting light. A properly structured cornea refracts light and transmits it to the retina, which is the retina at the back of the eye. The transmitted images allow us to see clearly. In an eye with refractive errors, since the shape of the cornea has some irregularities, it cannot refract the incident light correctly and causes the image to be transmitted to the retina as blurry. This is a condition in which the rays entering the eye cannot be focused on the retina. What causes astigmatism? Refractive errors can occur as a result of genetic origin, congenital or diseases that can cause changes in the stratum corneum. Another reason for astigmatism is that it can occur after a blow to the eye or eye surgery. One of the most important causes is keratoconus.