What does concomitant strabismus mean?

Congenital strabismus is a condition in which the axis of the eyes is not parallel, so that one eye is in the right position and the other eye is skewed when looking at objects.

The cause of concomitant strabismus is unknown, and may be related to abnormal development of extraocular muscles, refractive errors, fusion disorders, sensory disorders, genetic factors, etc. In addition to eye deviation, patients may also be accompanied by diplopia, confusion, monocular vision

, etc.