divergence

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divergence (dy-ver-jĕns) n. (in ophthalmology) simultaneous movement of both the eyes away from the midline. d. excess a type of divergent strabismus in which the eyes are deviated outwards more when looking in the distance than for near vision. d. insufficiency a type of convergent strabismus in which the eyes are deviated slightly inwards only when looking in the distance.

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