positive convergence

convergence /con·ver·gence/ (kon-ver´jens)

1. in evolution, the development of similar structures or organisms in unrelated taxa.

2. in embryology, the movement of cells from the periphery to the midline in gastrulation.

3. coordinated inclination of the two lines of sight towards their common point of fixation, or that point itself.

4. the exciting of a single sensory neuron by incoming impulses from multiple other neurons.conver´gent

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negative convergence  outward deviation of the visual axes.

positive convergence  inward deviation of the visual axes.

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positive convergence

n.

The inward deviation of the visual axes.