High-quality vision requires accounting for approximately 20 distinct cell types in the retina, each transmitting unique visual information.

“there are there really are 20 or so distinct cell types and they send different types of visual information to the different targets in the brain I like to think of them a little bit as an orchestra playing a symphony each different cell type has its particular score the violins do one thing the obos do something else it's a very organized signal coming out of the retina presenting to the brain this complex pattern of electrical activity that the brain assembles into our visual experience”