End-point nystagmus is physiological.

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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

End-point nystagmus is physiological.

Explanation:
End-point nystagmus is a normal, physiological response that shows up when the eyes are held at the extreme edge of their range. At far gaze, the eye-holding system and the vestibulo-ocular reflex interact in a way that can’t perfectly stabilize the eye at that position. A tiny drift toward the center is followed by a quick corrective eye movement, producing a small, rapid nystagmus. This happens in healthy individuals and disappears when gaze is moved away from the end point, so it’s not a sign of disease. Pathological nystagmus, by contrast, would not be confined to the extreme gaze and wouldn’t be considered a normal finding.

End-point nystagmus is a normal, physiological response that shows up when the eyes are held at the extreme edge of their range. At far gaze, the eye-holding system and the vestibulo-ocular reflex interact in a way that can’t perfectly stabilize the eye at that position. A tiny drift toward the center is followed by a quick corrective eye movement, producing a small, rapid nystagmus. This happens in healthy individuals and disappears when gaze is moved away from the end point, so it’s not a sign of disease. Pathological nystagmus, by contrast, would not be confined to the extreme gaze and wouldn’t be considered a normal finding.

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