Photoreceptor

Definition

Photoreceptors are specialized cells in the retina that convert light energy into electrical signals, allowing us to see. They are responsible for detecting and transmitting visual information to the brain.

Related terms

Rods:

Photoreceptors responsible for vision in low-light conditions. They do not perceive color but help with peripheral vision.

Cones:

Photoreceptors responsible for color vision and visual acuity. They work best in bright light conditions.

Optic Nerve:

The bundle of nerve fibers that carries visual information from the retina to the brain for processing.