What is Uveitis?
A layer consisting of three layers surrounds the gel-like substance in the center of the eyeball. The middle layer is called the "uvea." Inflammation of the uvea is referred to as "uveitis." Uveitis can affect all or any of the layers that make up the uvea, including the iris, choroid, and ciliary body.
Uvea is now recognized as a separate specialty within the field of ophthalmology. The diagnosis and treatment of uvea-related diseases are supported by advances in immunology (the science of immunity) and genetics.
Causes of Uveitis
The exact cause of uveitis cannot be identified in 30% to 40% of uveitis patients. Uveitis can be caused by various factors such as viruses, fungi, parasites, or it can manifest as an ocular symptom of a systemic disease. Therefore, it is necessary to investigate the underlying diseases through various tests. Additionally, uveitis can occur in conjunction with systemic diseases classified as collagen tissue and autoimmune disorders. Examples of these include Behçet's disease, ankylosing spondylitis, and rheumatoid arthritis.
Types of Uveitis
- Anterior uveitis (located in the front)
- Intermediate uveitis (located in the middle)
- Posterior uveitis (located in the back)