When eye doctors tackle strabism, they treat the lazy eye first. It is not until a later stage that they suggest an operation to treat squinting.
In the cases of some squinting children, sooner or later the eyes have to be straightened out.
This is done by strengthening or weakening the optic muscles which are responsible for eye movement. Usually, an operation is necessary for both eyes. This operation is done under local anaesthetic in the day hospital.
In +/- 80% of cases one operation is enough, but sometimes a second operation may be necessary.