Human eyes are actually extremely sensitive to light - they can ... At the point where the optic nerve leaves the eye there aren't any light receptor cells. This creates a blind spot. Most of the time ...

Most of the cell types in your body appear in many places — for example, humans have photoreceptors throughout our nervous ...

Patients with glaucoma who are using prostaglandin F (FP) receptor agonists to control their disease may experience ...

So, at the outset, nocturnal eyes gather more light than human eyes do ... The retina is home to two different kinds of light receptor cells—rods and cones. (Both are named after their relative ...

Human cones can detect 3 colors ... 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 ...

Human eyes are actually spheres ... 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 ...