Uveitis and Iritis

The eye has three different layers of tissue: the protective outer layer called the sclera, the middle layer called the uvea, and the inner layer called the retina. The iris, ciliary body and choroid form the uvea. Uveitis is an inflammation of any part of the uvea. Sometimes, uveitis affects other areas of the eye, for example, the retina, optic nerve or the lens.

Causes include infections or trauma. Other forms of uveitis are presumed to be “autoimmune”, where the body’s own immune system reacts against the body itself.


Uveitis can be acute (lasting days or weeks) or chronic. Some cases of uveitis can seriously affect vision and the long-term health of the eye. Permanent loss of sight can result, but these cases are uncommon.

Click Here to view a fact sheet from RANZCO for more information on Uveitis and Iritis.

Conjunctivitis

Pink eye (conjunctivitis) is an inflammation or infection of the transparent membrane (conjunctiva) that lines your eyelid and covers the white part of your eyeball. When small blood vessels in the conjunctiva become inflamed, they're more visible. This is what causes the whites of your eyes to appear reddish or pink.

Pink eye is commonly caused by a bacterial or viral infection or an allergic reaction. It may affect one or both eyes.

Pink eye can be irritating, but it rarely affects your vision. Treatments can help ease the discomfort of pink eye. Because pink eye can be contagious, early diagnosis and treatment can help limit its spread.

Click Here to view more information about conjunctivitis from the Mayo Clinic.

Red Eye

Red eye is a common problem that can affect one or both eyes. The redness associated with red eye comes from expanded blood vessels on the surface of your eye due to inflammation, usually from some form of irritation or infection. 

Most often the inflammation that causes red eye occurs in the membrane covering the white of your eye and lining your eyelid. This membrane is called the conjunctiva (kun-JUNK-tih-vuh); inflammation of the conjunctiva is called conjunctivitis (kun-junk-tih-VY-tis).

Click Here for more information about Red Eye from the Mayo Clinic.