(1) Inward turning of the eyes to focus on a near point, with the result that a single image is registered by both retinas.
(2) The coming together of various nerve ?bres to form a nerve tract that provides a single pathway from di?erent parts of the brain.
n. 1. (in neurology) the formation of nerve tracts by fibres coming together into one pathway from different regions of the brain. 2. (in ophthalmology) the ability of the eyes to turn inwards and focus on a near point so that a single image is formed on both retinas. The closer the object, the greater the degree of convergence.
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