Eye cancer

Eye is the organ that collects light and sends messages to the brain to form a picture. The three main parts of the eye:

1) Eyeball
2) Orbit (eye socket)
3) Adnexal (accessory) structures (such as the eyelid and tear glands)

    • The outer part of the eye is made up of the retina, sclera and uvea.
    • The sclera is the outer wall of the eyeball.The retina is a thin-layered structure that lines the eyeball and sends information from the eye to the brain.
    • The uvea nourishes the eye. Both the retina and the uvea contain blood vessels.
    • The uvea consists of the following:

 Iris: The colored part of the eye that controls the amount of light entering the eye.

Ciliary body: Muscular tissue that produces the watery fluid in the eye and helps the eye focus.

 Choroid: The layer of tissue underneath the retina that contains connective tissue and melanocytes and nourishes the inside of the eye; the choroid is the most common site for a tumor.

Symptoms of eye cancer:

    • Bulging of one eye
    • Complete or partial loss of sight
    • Pain in or around the eye (rare with eye cancer)
    • Blurred vision
    • Change in the appearance of the eye

Eye cancer can also cause

    • Seeing spots or flashes of light or wiggly lines in front of your eyes
    • Blinkered vision (loss of peripheral vision) – you can see what is straight ahead clearly, but not what is at the sides
    • A dark spot on the colored part of the eye (the iris) that is getting bigger

Pain is quite rare unless the cancer has spread to the outside of the eye.