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.
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