Eyestrain
One of the most common diagnoses against the astignatismo eyestrain. What is astigmatism? Why produce symptoms such as headaches or burning sensation in your eyes? Then the experts tell us that is astigmatism and what are its main symptoms.
The cornea, lens is in front of the eye that receives and “compresses” the images so that they reach the retina clear, is shaped like a hemisphere and is almost perfect transparency. In fact, usually have a radius of curvature larger and a smaller. To be more specific we could say that football has all the same bend radius while a rugby ball has a radius of curvature than the horizontal vertical. When this happens in the cornea, there is astigmatism. It can range from very mild to quite pronounce.