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What is the result of consensual light reflex in the right eye?

Right pupil dilation

Right pupil constriction

The consensual light reflex is an important neurological response that occurs when light is shone into one eye, leading to constriction of both pupils, regardless of which eye is stimulated. When light is directed into the right eye, sensory signals are sent via the optic nerve to the brain. The brain processes this information and sends a motor response through the oculomotor nerve to constrict the muscles in the iris of both the right and left eyes, resulting in pupil constriction.

This physiological response helps protect the retina from excessive light and is an indicator of the integrity of the optic and oculomotor pathways. In this scenario, shining a light in the right eye causes the right pupil to constrict due to direct response as well as the left pupil to constrict due to the consensual response.

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No change in pupil size

Left pupil constriction

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