Astigmatism

Symptom: both near and distant objects appear blurred.

Cause: the normally spherical shape of the cornea looks like a rugby ball in this case. This creates a different refractive power of the eye depending on the lines of vision.

Treatment: astigmatism is corrected by wearing glasses fitted with toric lenses. The same optical effect is obtained by reshaping the cornea with laser in order to make it completely homogeneous.