turning the image on the retina upside down. Inside the retina, there are millions of special sense receptors called rods and cones. The rods see the shapes of things, picking out black ...

turning the image on the retina upside down. Inside the retina, there are millions of special sense receptors called rods and cones. The rods see the shapes of things, picking out black ...

The image projected onto the back of our eyes is upside down. Our brain decodes this image so that we perceive it the right ... Concentrated at the outer edges of the retina, rod cells are involved in ...