The red-eye effect typically occurs when the camera flash reflects off the retina, resulting in the appearance of red pupils ...

And very black hair! (...). What traumatizes me the most are her pupil-less red eyes. And its blood-red jaw, as if it had ...

Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye that lets the ... and the cones see the colours: red, green and blue, and all ...