for color vision. Able to detect bright lights and color of the bright light.
a) concentrated in fovea centralis, which is surrounded by a yellow area called
the macula lutea.
b) specialized pigment called photopsin
c) 3 types: red, green, blue
Subtract all colors = black
Add all colors = white
d) always active
e) Retinal ganglion cells= specialized cells with a pigment called melanopsin.