comitance


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com·i·tance

(kom'ē-tants),
A characteristic of strabismus in which the misalignment of the eyes is maintained in all directions of gaze.
Farlex Partner Medical Dictionary © Farlex 2012

concomitance 

The condition in which the two eyes move as a unit, that is maintaining a constant angle between them for all directions of gaze when fixating at a fixed distance. Syn. comitance. See incomitance; concomitant strabismus.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann