Which eye movement involves rotation of a single eye?

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

Multiple Choice

Which eye movement involves rotation of a single eye?

Explanation:
Movement of one eye alone is a monocular movement. When only one eye moves while the other stays fixed, that’s a duction, which can include rotation (torsion) of that eye. Binocular movements involve both eyes moving together in the same direction to maintain alignment and fusion, so they are conjugate or version movements. Since this scenario describes rotating a single eye, monocular movement best fits.

Movement of one eye alone is a monocular movement. When only one eye moves while the other stays fixed, that’s a duction, which can include rotation (torsion) of that eye. Binocular movements involve both eyes moving together in the same direction to maintain alignment and fusion, so they are conjugate or version movements. Since this scenario describes rotating a single eye, monocular movement best fits.

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