Are ductions monocular or binocular?

Prepare for the NBEO Ocular Motility Test. Practice with questions and explanations to enhance your understanding. Get ready for your exam easily!

Multiple Choice

Are ductions monocular or binocular?

Explanation:
Ductions test the movement of a single eye in isolation. By covering the other eye, you ensure that only one eye moves, so you’re assessing that eye’s extraocular muscles independently. Because the movement is not shared or coordinated with the fellow eye, it’s a monocular movement. In contrast, binocular (version) movements involve both eyes moving together in the same direction, which is not what ductions measure.

Ductions test the movement of a single eye in isolation. By covering the other eye, you ensure that only one eye moves, so you’re assessing that eye’s extraocular muscles independently. Because the movement is not shared or coordinated with the fellow eye, it’s a monocular movement.

In contrast, binocular (version) movements involve both eyes moving together in the same direction, which is not what ductions measure.

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