duction


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duc·tion

(dŭk'shŭn),
1. The act of leading, bringing, conducting.
2. In ophthalmology, ocular rotations with reference to one eye; usually additionally designating direction of movement of the eye; for example, rotation toward the nose, adduction; toward the temple, abduction; upward, supra- or sursumduction; downward, deorsumduction; of the upper pole of one cornea, cycloduction; of the upper pole of one cornea outward, excycloduction; of the upper pole of one cornea inward, incycloduction.
[L. duco, to lead]

duction

/duc·tion/ (duk´shun) in ophthalmology, the rotation of an eye by the extraocular muscles around its horizontal, vertical, or anteroposterior axis.

duction

[duk′shən]
the movement of an individual eyeball from the primary to secondary or tertiary position of gaze.

duc·tion

(dŭk'shŭn)
1. The act of leading, bringing, conducting.
2. In ophthalmology, ocular rotations with reference to one eye; usually additionally designating direction of movement of the eye.
[L. duco, to lead]

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.
References in periodicals archive ?
Forced duction test preoperatively showed restriction in adduction and supraduction in both cases.
As expected, China represents a large and rapidly modernizing tire market, and the growth of China's tire pro duction capacity is positioning China as a leader in the global tire industry, as well as a major carbon black supplier.
In theatre and prior to surgery all patients underwent forced duction tests to document entrapment of orbital tissue within the fracture site.
Other routes hit by a re duction in services are Holyhead to RAF Valley, Ban gor to Newborough, Llangefni to Benllech, Bangor to Cemaes, and Llangefni to Llangaffo.
The dog pound, which was the first area to start pro duction picking with voice, was up and running flawlessly within days.
Saudi Arabia the Arab world's largest economy is encouraging food companies to invest in Africa and Asia to reduce local grain pro duction and conserve water.
In 2010, Pakistani cotton pro duction was assessed at 14 million bales but flood waters destroyed and estimated 700,000 acres of cotton.
Originally discovered as a dietary factor essential for reproduction in rats, vitamin E has revealed in the meantime many more important molecular properties, such as the scavenging of reactive oxygen and nitrogen species with consequent prevention of oxidative damage associated with many diseases, or the modulation of signal trans duction and gene expression in antioxidant and non-antioxidant manners.
The industry was moving towards a tipping point as free-range eggs crept towards half of all egg production, duction, said Rob Newbery, chief poultry adviser at the NFU.
Al Mady said the recent crisis was over for the industry, citing data from the American Chemistry Council (ACC) which pointed to chemical industry pro- duction growth averaging 3.
Leadership of the PML N examined the cost of sugar duction in the country and the stock position and arrived at a conclusion that in this situation, the prices fixed by the minister are unfair & unjustified.
Coleen, 22, was enjoying her hen party on the EUR1,750- a-day Sea Duction, off Miami.