1. A turning (version) downward. 2. In physiologic optics, rotation of both eyes downward. 3. SYN: infraclusion.
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in·fra·ver·sion (in″frə-vurґzhən) [infra- + version] 1. infraclusion. 2. the downward deviation of one eye. 3. conjugate downward rotation of both eyes; called also deorsumversion.
Infraversion of one (A) or both (B) eyes.
Medical dictionary. 2011.