DID YOU KNOW?
When the cornea is perfectly round, light rays bend (refract) evenly onto a small area of the retina to create a sharp image. With astigmatism, the cornea (the clear, outermost layer of the eye) is oval. So the light is unable to focus, producing a blurred image.
The most common symptoms of astigmatism are blurred vision, headaches, eyestrain or reading difficulties. Astigmatic people may also notice distorted near and far vision, unclear peripheral vision, inability to distinguish certain shapes and details and an inability to see clearly between horizontal and vertical lines.