THE SENSE OF SIGHT

Light goes into the eye through the pupil. Then it passes through the lens.

The lens projects an upside down image onto the retina. This information is sent to the optic nerve.

The optic nerve transmits the information to the brain.

The cornea covers and protects the iris and the pupil.

The iris is the coloured part of the eye. It opens and closes the pupil.

The pupil is a small hole that lets light into the eye.

The lens focuses light onto the retina.

The retina detects light and colours. It sends information to the optic nerve.

The optic nerve transmits information from the retina to the brain.