It's fairly common to treat binocular problems with different kinds of optical solutions. However, it's important to understand that it might take good motivation and some practice before it works as intended. Sometimes, several solutions must be tested before the optimal one is found. A good cooperation between ophtalmologist, orthoptist and optometrist is also a good starting point.
The referral process is different in different countrys. For strabismus in children, the screening at the children care centers are extremely important.