n.
[L. ductio, fr. ducere to lead.]
Guidance. [Obs.] Feltham.
| Dictionary: Duc·tion |
[L. ductio, fr. ducere to lead.]
Guidance. [Obs.] Feltham.
| 5min Related Video: Duction |
| Medical Dictionary: duc·tion |
| Wikipedia: Duction |
A duction is an eye movement involving only one eye[1]. There are generally six possible movements depending upon the eye's axis of rotation:
The forced duction test is performed in order to determine whether the absence of movement of the eye is due to a neurological disorder or a mechanical restriction[2].
The anesthetized conjunctiva is grasped with forceps and an attempt is made to move the eye ball in the direction where the movement is restricted. If a mechanical restriction is present, it will not be possible to induce a passive movement of the eye ball[3].
This test is semi invasive.
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![]() | Dictionary. Webster 1913 Dictionary edited by Patrick J. Cassidy Read more | |
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