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Uveitis (/ ˌ juː v i. aɪ t ɪ s /) is inflammation of the uvea, the pigmented layer of the eye between the inner retina and the outer fibrous layer composed of the sclera and cornea. [1] The uvea consists of the middle layer of pigmented vascular structures of the eye and includes the iris , ciliary body , and choroid .
Intermediate uveitis is a form of uveitis localized to the vitreous and peripheral retina. Primary sites of inflammation include the vitreous of which other such entities as pars planitis, posterior cyclitis, and hyalitis are encompassed.
Because uveitic glaucoma is a progressive stage of anterior non infectious uveitis, uveitic glaucoma involves signs and symptoms of both glaucoma and uveitis.. Patients with acute non infectious anterior uveitis may experience the following symptoms: pain, blurry vision, headache, photophobia (discomfort or pain due to light exposure), or the observance of haloes around lights.
Panuveitis also known as Diffuse uveitis or Total uveitis is an eye disease affecting the internal structures of the eye. This inflammation occurs throughout the uveal tract , with no specific areas of predominant inflammation.
Human eye.. The ocular immune system protects the eye from infection and regulates healing processes following injuries. The interior of the eye lacks lymph vessels but is highly vascularized, and many immune cells reside in the uvea, including mostly macrophages, dendritic cells, and mast cells. [1]
Birdshot chorioretinopathy, now commonly named birdshot uveitis or HLA-A29 uveitis, [1] is a rare form of bilateral posterior uveitis affecting both eyes. It causes severe, progressive inflammation of both the choroid and retina .
Posterior synechia can be observed in cases of anterior uveitis secondary to severe to moderate bacterial keratitis. [2] Posterior synechia also cause glaucoma, but with a different mechanism. In posterior synechia, the iris adheres to the lens, blocking the flow of aqueous humor from the posterior chamber to the anterior chamber.
It is a form of uveitis and is associated with anterior uveitis and more commonly intermediate or posterior uveitis. It is important to distinguish vitritis from other types of cells in the vitreous cavity such as red blood cells ( vitreous hemorrhage ), pigment cells ( retinal tear ), and tumor cells ( lymphoma , retinoblastoma , choroidal ...