What is Manifest Squint (Heterotropia)
Manifest squint is a deviation of one eye from the normal position when the fusion reflex is present. The subcategories of manifest squint are concomitant. (non-paralytic) and non-concomitant (paralytic). Concomitant is a constant deviation of the eye in all directions of gaze. It can either be divergent, convergent or vertical. Manifest squint may be seen to be uni-ocular or alternating between either eyes. Manifest squint is also called "tropes".