Uvea Flashcards
Greek for grape due to its appearance when dissected. Three components are iris, ciliary body and choroid.
Uvea (synonymous with vascular tunic lay of globe)
breakdown(inflammation) of the blood ocular barrier.
Uveitis
inflammation of the iris and ciliary body. Otherwise known as ‘iridocyclitis’
Anterior uveitis
inflammation of the choroid or choroiditis. Rarely observed independent of retinal inflammation and is thus the term ‘Chorioretinitis’ is used more often.
Posterior uveitis
inflammation of all components of the uvea. The iris, ciliary body, choroid.
panuveitis
inflammation of all structures internal to the fibrous tunic of the eye
Endophthalmitis
inflammation of all structures of the globe, including the fibrous tunic (cornea and sclera)
Panophthalmitis
Pathognomonic sign of anterior uveitis. proteins and cells suspended in the anterior chamber. debris scatters light and can be visualized when a bright focused beam of light is passed through it. looks like headlights through fog (Tyndall effect)
Aqueous flare
pathognomonic of uveitis which consists of cellular debris that adheres to corneal endothelium as a result of constantly cycling convection currents within the eye.
Keratic precipitates
Pathognamonic of uveitis. Its very good at adhering delicate structures to one another within the eye and is often responsible for synechia
fibrin
Pathognomonic for uveitis, it refers to white blood cells that settle out dependently in the anterior chamber.
hypopyon