Astigmatism, along with short sight and long sight, is a common cause of blurry vision. It's usually corrected with glasses or contact lenses.
What is astigmatism?
Astigmatism means your eye is shaped more like a rugby ball than a football, so light is focused at more than one place in the eye.
This can cause:
- blurred vision
- eye strain (you may notice this after concentrating for a long time – on a computer, for example)
In young children, a high astigmatism may cause lazy eye. It's important this is spotted early so it can be treated.
What you can do for astigmatism
If astigmatism is affecting your eyesight, there are several ways to correct it.