Photoreceptors are specialized neurons located in the retina of the eye that convert light into electrical signals, facilitating vision. These cells play a crucial role in sensory perception by allowing the brain to interpret visual information.
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Retina: The layer at the back of the eyeball containing cells that are sensitive to light and trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.
Rods: A type of photoreceptor in the retina that is highly sensitive to light, making them responsible for vision at low light levels.
Cones: A type of photoreceptor in the retina that functions best in bright light and enables high-acuity color vision