duction /duc·tion/ (duk´shun) in ophthalmology, the rotation of an eye by the extraocular muscles around its horizontal, vertical, or anteroposterior axis.
duction
duc·tion (d k sh n)n. 1. The act of leading, bringing, or conducting. 2. The rotation of an eye on the vertical and horizontal axis. |
duction
[duk′shən]
the movement of an individual eyeball from the primary to secondary or tertiary position of gaze.
duction
1. Movement of one eye alone as in abduction, adduction, depression, elevation, etc. 2. Disjunctive binocular movements (although it is more correct to call these movements vergences). See dextroduction; laevoduction; disjunctive eye movements.
binocular duction refers to the maximum vergence powers that can be exerted while maintaining single binocular vision through prisms, either in the base-in or base-out direction. Binocular ductions are measured from the passive position (or phoria position) to the break point.
binocular duction refers to the maximum vergence powers that can be exerted while maintaining single binocular vision through prisms, either in the base-in or base-out direction. Binocular ductions are measured from the passive position (or phoria position) to the break point.
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