A squint occurs when your eyes don’t point in the same direction. The most common type of squint is where one eye turns slightly inwards, towards your nose. Sometimes the eye may turn out or – very occasionally –up or down, while the other looks ahead. This can happen in either eye. If a young child has a squint it is important that they are examined by an optometrist to help prevent the eye that does not look straight from becoming lazy.
About 2-3% of children will have a squint, and you are more likely to have a squint if it runs in your family. Children who are long sighted may have a squint without their glasses because their eyes over focus to see things.
Adults may occasionally develop a squint. If this happens they are likely to see double, and they should be examined as soon as possible by an optometrist.
If you have a squint, because both eyes are not looking in the same direction, you will see double. If the squint develops in early childhood, the child will learn to ignore the squinting eye to stop them seeing double. This can lead to the squinting eye becoming lazy (amblyopia), so it is important that this is treated as soon as possible.
Anyone who notices a recent onset squint should arrange to see their optometrist as soon as possible.
Treatment depends on what is causing the squint and includes: