Why is the retina known as the blind spot?
The retina isn’t known as the blind spot. Your retina is the whole section of the back of your eyeball which has sensors (cones and rods) to detect light and such and give you an image in your brain so you can see. But there is a spot on your retina which connects to your optic nerve and to your brain, that is effectively called the “blind spot” because you can not see any light that falls on that spot because there are no sensors there.