The below diagram shows the basic anatomy of the human eye:
the transparent part at the front of the eye that refracts light entering
the eye onto the lens.
a transparent structure behind the pupil that refracts incoming light and
focuses it onto the retina. The lens is able to change shape in order to
improve the focus.
This is the coloured part of the eye that controls the amount of light
that enters the eye, it is able to contact and dilate in order to control
the size of the pupil depending on the light intensity.
the outer white part of the eye that protects the inner structures.
this is the light sensitive layer inside the eye that contains light
sensitive photoreceptive cells called rods and cones. These cells change
light into sight by converting light into electrical impulses. These
electrical messages are sent from the retina to the brain and interpreted
this leaves the eye at the optic disk and transfers all the visual
information to the brain.
Conjunctiva: a transparent vascular membrane that lines the inside of the eyelids and extends over the front of the white part of the eye (the sclera).
this fluid circulates the front part of the eye, it provides nourishment
and helps maintain the eye pressure.
the clear gel in the centre of the eye that helps the eye to maintain its