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A term describing the coordinated movement of the eyes and head, where the eyes maintain fixation on a stationary target even while the head is rotating (or the body is moving), ensuring the target remains centered on the fovea.
read more about isocentric gaze ...The head movement occurs around a theoretical center point (the 'isocenter'), and the eyes counter-rotate precisely to maintain fixation on the target.
This function relies heavily on the Vestibulo-Ocular Reflex (VOR), which uses signals from the inner ear (vestibular system) to generate equal and opposite eye movements to compensate for head motion.
The VOR and isocentric gaze are tested in clinical settings to assess the health of the vestibular system and brainstem pathways.
The VOR's purpose is to stabilize the retinal image during head movement, preventing the world from appearing blurry or jumping.
Failure of the VOR results in oscillopsia, the subjective illusion that stationary objects in the visual world are moving or jumping during head motion.
Yes. The VOR is continuously active while driving, allowing you to maintain clear vision of the road and signs despite the constant bumps and head movements.