The Eye

• The Pupil


  The pupil is an opening situated in the middle of the iris. It allows light to be transmitted to the retina.
• The Iris


  The iris is a thin tissue located inside the eye. It has a hole in the centre; it is called the pupil. It helps control the amount of light that enters the eye.
• Tear Glands


  They are located in the upper part of the eye, behind each eyelid. The tear glands secretes fluid that cleans and protects the eye‘s surface.
• Aqueous Humour/fluids


  Aqueous humour is the fluid that fills the space in the eye that lies between the cornea and the iris. They help the eye maintain its shape and prevent injuries to the eye by helping absorb shocks to the eyes.
• Conjunctiva


  It is the thin membrane that covers the outer surface of the eye and the inside of the eyelids. It lubricates the outer layer and helps prevent microbes from entering the inner part of the eye.
• The Retina


  The retina lines the back of the eye and it is situated near the optic nerve. It processes the light received through the lens of the eye and sends this on to the brain for recognition.
• The Macula


  The macula is a part of the retina. It is responsible for detailed central and coloured vision.
• Optic Nerve


  It is situated at the back of the eye. The optic nerve transmit the electrical impulses formed by the retina to the brain, which then interprets these messages as images.
• Ciliary Muscle


  It is located in the middle of the eye. It enables the lens to change shape for focusing on near and distant objects.
• The Lens


  It is located behind the pupil in the eye. It enables vision by focusing light that enters the eye onto the retina.