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2. Objectives:
• You will Identify different parts of
the human eye.
• Explain the function of the eye.
• Enumerate the parts of the eye.
• Describe each function of the
human eye.
3. PARTS OF THE EYE
Vitreous Humor
Sclera
Iris
Optic nerve
Retina
Ciliary body
and muscle
5. Iris
The iris is the colored
part of the eye that
surrounds the pupil. It
regulates the amount
of light that enters the
eye.
6. Sclera
is the white outer coating of
the eye. It is tough, fibrous
tissue that extends from the
cornea (the clear front section
of the eye) to the optic nerve
at the back of the eye.
7. Optic
nerve
It's an extension of your
central nervous system, which
includes your brain and spine.
The optic nerve transmits
electrical impulses from your
eyes to your brain. Your brain
processes this sensory
information so that you can
see.
8. Retina
is a layer of photoreceptors
cells and glial cells within the
eye that captures incoming
photons and transmits them
along neuronal pathways as
both electrical and chemical
signals for the brain to
perceive a visual picture.
9. Ciliary body
and muscle
produces the fluid in the eye
called aqueous humor. It also
contains the ciliary muscle,
which changes the shape of
the lens when your eyes focus
on a near object. This process
is called accommodation.