You know when it rains and water drops cover the window?
You can see the drops very clearly, but everything outside looks blurry.

Some people’s vision works kind of like that.
They can see very well close things, like a toy in their hands. But things far away, like toys on a store shelf, look fuzzy and blurry.

This is called myopia, or nearsightedness.
To see better, people can wear glasses or contact lenses.