The reason lies within the eye. In the eye are light receptors called cones and rods. Cones help us distinguish different colors, while rods help us see in dim light. The number of cones and rods ...

Inside the retina, there are millions of special sense receptors called rods and cones. The rods see the shapes of things, picking out black, white and shades of grey, and the cones see the ...

The retina is a layered structure that lines the ... Ultrastructural analysis of human retinas reveals that the inner segment of human rods extends alongside the outer segment to form the ...