Photoreceptor Cells

Definition

Photoreceptor cells are specialized cells found in the retina of our eyes that detect and respond to light stimuli. They convert light energy into electrical signals which are then transmitted to our brain for processing.

Related terms

Rods:

One type of photoreceptor cell responsible for vision in low-light conditions.

Cones:

Another type of photoreceptor cell responsible for color vision and detecting fine details.

Optic Nerve:

A bundle of nerve fibers that carries visual information from photoreceptor cells to our brain.