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The pupil in your eye (the black center) is what controls how much light is allowed to enter your eye. The wider the pupil is, the more light is let in. When your eyes feel sensitive to light, it is because the pupil is letting in excessive light.

Sometimes, it is a neurological event that makes your eyes sensitive to light, such as a migraine headache.

In any case, the area of the brain that is affected by light sensitivity is the portion that is dedicated to the processing of visual information, and that is the occipital cortex.

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15y ago

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