Rods and Cones are Not Alone
Category: SCIENCE
There are approximately 120 million rods and 6 million cones in the retina which help us to see, but did you know there is another type of light sensitive cell there? Intrinsically photoreceptive retinal ganglion cells are a type of cell in our retina that has nothing to do with our vision.
By Cheryl G. Murphy, ContributorOptometrist, Science Writer, 2015-07-01