How our eye sees

Retina is made up of 130 million shaped 

like Rods for black and white vision and

7 million shaped like cones for colour vision.

When you look at an object , the light passes through the lens,

Which brings it into correct focus on the retina.

A complex chemistry gets underway.

The light bleaches  Rhodopsin, a purplish-red pigment in my rods.

This generates a tiny wisp of electricity.

This feeds into my Optic nerve to the brain and you see the object.

All this happens in .002 second. 


Isn’t eye wonderful.