Humans have unique eye shapes that differ from one person to ... Aura reflects one's physical, emotional, and spiritual state ...

Nocturnal animals tend to have proportionally bigger eyes than ... is home to two different kinds of light receptor cells—rods and cones. (Both are named after their relative shapes.) ...

In this video, learn about different parts of the human eye and how our sight works ... The rods see the shapes of things, picking out black, white and shades of grey, and the cones see the ...

Both cameras and the human eye ... shape to focus objects at nearby or far away. Cameras often use a system of lenses, which can be moved to produce focused images of objects which are different ...