Vision problems are one common cause of headaches. Headaches are a known possible side effect of astigmatism. If you have astigmatism, it means that your cornea is misshapen in a particular way – in this case, like a football.

How do I know if my headache is from my eyes?

Unlike other types of headaches, eye strain headaches are rarely associated with vomiting or nausea. Pain behind your eyes. The pain is usually located behind or around your eyes. The area might feel sore or tired.

Does an astigmatism cause headaches?

Though there are many reasons why you may have frequent headaches, your vision may be playing a part. Headaches are a common side effect of astigmatism, a common condition that develops when your cornea has an irregular shape.