Chapter 1 Flashcards
What confirms the diagnosis of anterior uveitis?
WBC’s in the anterior chamber
Uveitis is caused by the breakdown of…
The blood aqueous barrier (think tight junctions in 3 places…CB, Schelmm’s canal and iris vessels)
The tight junctions are where in the AC?
CB, iris vessels, Schelmm’s canal
What is posterior synechiae?
Iris sticking to lens
What is peripheral anterior synechiae?
Iris sticking to TM
What drug used for Uveitis?
Use Pred Forte steroid every hour or Durasol QID
to decrease fatness and stickiness of iris
What do you use to treat cystoid macula edema (cme)?
Pred Forte AND an NSAID
What are key differences b/w episcleritis and scleritis
Scleritis is more painful, bilateral, associated with systemic condition, bluish, gradual onset
What blanches episcleritis (to make dx that it is NOT scleritis)?
2.5% phenylephrine. If doesn’t work use 10%
To make a diagnosis of uveitis there must be _____ in the anterior chamber.
White blood cells
Keratic precipitates (KP’s) are the most common corneal finding in ________.
Uveitis
Stellate KP’s are observed in what 2 conditions?
Fuch’s heterochromic iridocyclitis (more common) and herpetic uveitis.
3 things to look for in Uveitis
- peripheral anterior synechiae (PAS) on TM
- Posterior synechiae (on lens)
- CME
Most common type of scleritis is
a. diffuse non-necrotizing
b. nodular non-necrotizing
c. necrotizing with inflammation
d. necrotizing without inflammation (scleromalacia perforans)
A.
Necrotizing scleritis without inflammation is also called:
Scleromalacia perforans (they have RA)
What auto-immune disease does a patient with sleromalacia perforans have?
RA
Granulomatous KP’s or mutton fat KP’s are…
macrophages
Most common type of Uveitis is non _______
granulomatous
Most common cause of non-granulomatous uveitis
Idiopathic 50-70%
Three other causes of non-granulomatous uveitis are:
- Ankyl. spon (back pain)
- RA (urination pain)
- inflammatory bowel disease
Chronic granulomatous
Sarcoid, TB, syphilis (Arlt’s triangle is the botton triangular shaped area where they form. They are sticky and attach to the bad surface of the cornea)
1 most common systemic disease associated with acute anterior uveitis
Ankylosing spondylitis
1 symptom patient’s complain of in TB
night sweats
Most common cause of posterior uveitis
Toxoplasmosis, unilateral, (vitritis)