The eyeball has the shape of a soccer ball. There are three different coatings of tissue surrounding the central ocular cavity, (which is called the vitreous space). The outermost coating is the sclera which is a white collagenous structural and protective layer. The innermost is the retina which converts light images in to signals that result in vision.
The in between layer the uvea. The uvea contains many blood vessels that contribute to the eye’s circulation. It has a dark red color like a “grape” and has been given the name “uvea” after the Latin word for grape “Uva”. Uveitis is inflammation of this middle layer of the eye. Since the uveal circulation nitrifies the eye, uveitis can damage vision.
There are different types of Uveitis
Anterior iritis affects the iris (pupil) and is the most common type. Anterior iritis usually has a sudden and usually clears after treatment with steroids drops for a few weeks. The patients have red inflamed and light sensitive eyes with inflammation deposits visible at the biomicroscope.
Posterior uveitis. Posterior uveitis affects the uvea closest to the retina. Posterior uveitis manifests slowly and can last for months or years.
Panuveitis is the condition where uveitis assaults all parts of the uvea simultaneously.
Causes of Uveitis
The causes of uveitis vary:
- Traumatic uveitis
- Infectious uveitis (mumps, shingles, herpes virus, parasites, fungus or STDs)
- Uveitis associated with systemic autoimmune conditions (juvenile or adult rheumatoid arthritis lupus, sarcoidosis, sacroilitis, polyarteritis or CREST syndrome).
Uveitis can be a serious condition that can cause ocular problems. The inflammation can incite cataract formation, spike the intraocular pressure (glaucoma) make the retina swell (macular edema) and other problems that could lead to visual impairment and permanent damage to the eye.
How Eye Doctors Treat Uveitis
Treatment should be immediate. The mainstay of treatment is steroid drops (and in more serious cases steroid pills or injections). Sometimes imaging studies are necessary to help evaluate and monitor some of the effects of uveitis.
When uveitis incites eye pressure, cataracts, retinal swelling or other complications patients may need treatment for those disorders in addition to the care provided to clear the uveitis.
If a patient presents with a painful light sensitive eye that does not clear up quickly it is advised they see an ophthalmologist as soon as possible.Leave a reply →