– The aesthetic consequence of strabismus.

In some children, one eye turns or gets into a corner, either continuously or alternately. The first most visible consequence of strabismus is therefore aesthetic: it at least has the merit of raising the alarm.

– Amblyopia, a functional consequence of strabismus

A second consequence, much more serious, is a source of invisible handicap, this time: it is amblyopia of the deviated eye, which develops when the two axes of the eyes are not aligned. Each eye then looks at a different place and sends to the brain a shifted image, not superimposable on that of the other eye (too different to be merged). The consequence is the appearance of double vision. To avoid this double vision, the image of the deviated eye is neutralized by the brain. In other words, although the deviated eye works, the brain acts as if it does not exist, as if this eye does not see. This is amblyopia, and it is reversible, provided you react in time. Without this, the deviated eye becomes blind because the brain no longer interprets the images it sends.

– The consequence on the vision in relief.

Third consequence, finally: the poor vision of the deviated eye endangers the vision in relief. Normally, it develops in infants between four and a half to twenty months. But if in this age group the brain receives two images that are too different to be merged, this relief vision cannot appear. Thus, it does not develop in early or congenital strabismus, beginning before four months. It is only with late strabismus that occurs after the age of six months that the raised vision that had started to develop can still be saved, provided you act very quickly, again.