The patient's brain perceives the bright light as visual stimuli, which is transmitted from the eye to the brain through the optic nerve for processing and interpretation.
When the bright light enters the patient's eye, it stimulates the photoreceptor cells in the retina, which then send electrical signals to the brain via the optic nerve. The brain interprets these signals as a perception of the bright light.
When a bright light is shined into a patient's eye, the light stimulates the photoreceptor cells in the retina, which then sends signals to the brain through the optic nerve, leading to the perception of the bright light.