photopigment
/foʊtoʊˈpɪɡmənt/
noun
- A light-sensitive chemical in the eye that reacts to light and helps with vision.
- Rhodopsin is a photopigment found in the rod cells of the retina.
- When a photopigment absorbs light, it triggers a signal that travels to the brain.
- Different photopigments allow the eye to detect various colors.