Explanation

Short-sightedness, also called myopia, is a problem with your vision and it is often inherited. You usually get it when you are aged over 10 years.

You are short sighted if your eye is too long from front to back, or if the curve of your cornea is too steep. This means that the length of your eye and its power to focus don't match up, so although you can see things close up very clearly, things in the distance are blurred - like the blackboard in the classroom or pictures on the television.

You might just be a little bit short sighted or you could be quite badly short sighted, it depends how well the lens of your eye can focus. You should make sure you have an eye test once every year or two, so that if you become short sighted, you can be diagnosed and treated as soon as possible. This will stop you from having problems at school if you start finding that you can't see properly.