Great explanation here @sabrinanagy1 ! It’s definitely one that not many thoroughly understand, so this will be very helpful. For the sake of keeping font type & size consistent, I’ve submitted a separate suggestion. So I will close this one out
One edit I did make in addition to yours is replacing “ganglion cells” for c3 with “photoreceptors” since, when light first hits, it passes the ganglion cells & reaches photoreceptors, which are needed to convert light into an electrical signal that would eventually reach the brain.