anterior Uveitis Flashcards
(19 cards)
Anterior uveitis
involves anterior uveal tract
most common
can result in iritis, iridocyclitis (inflammation of both iris and pasrsplicanta
signs and symotms include: dilated BV, Infilteration of cells, spasm of sphinter muscle
acute anterior uveitis
more common
can be a feature of a wide variaty of ocular conditions or secondary to infalm of the eye
Acute anterior uveitis symptoms
rapid onset pain, photophobia, redness and watery discharge
can be preceeded by mild ocular discomfort for afew days
blurry vision = secere
acute anterior uveitis signs
VA imapirment depends on severity of inflmmation
Va often only mildly reduced
ciliary injections
Chronic anterior uveitis
less common
more common
assocaited with systemic disease
Chronic anterior uveitis symotoms
can be insidious or acute onset
assymptomatic until development of complications
Chronic anterior uveitis signs
VA variaability depends on severity of inflammation and pesence of complications
ciliary injection can be absent
granulomatous inflammation
Keratitic precipitates usually medium - large and may become pigmentated
Miosis
Due to pupillary sphincter spasm - affected pupil smaller
Predisposed the formation of posterior synachae
Anterior chamber cells
Num of cells should be espimated in order to grade pre dilation
cells will move as they are inactive current
Hyopoyon
whitish plurent exudates composed of inflammatory cells
form in inferior part of anterior camber - form horozontal level under the influence of gravity
Keratitic percipitates
deposits of / on corneal endothelium composed of inflammatory cells
often trangular pattern
can be inferior or uniform
aqueous flare
hazyness of normally clear fluid in the AC
flare
makes the iris appear cloudy and out of focus
can be clinically graded
fiverous exudates
in anterior chamber
iris nodules
keoppe nodules located on pupillary margin and may be site on posterior synachae formation
Busacca nodules involve the iris stroma
yellowish nodule can appear from dialted iris nodule
iris pearls may be seen in acute anterior uveitis as well as iris crystals (rare)
iris atrophy
diffuse stromal atrophy
pathy / sectoral atropjy
usually seen in herpes related atrophy
posterior synachae
inflammatory adheasion between pupil margin and anterior lens capsule
iris can pull away and keave a bit of its self on the lens
likely to form at location of keoppe nodules
can develop rapidly
an be prevented using mydiratic agents
can cause iris bombe
must attempt to break before it becomes perminent
iris neovas
new blood vessels form on iris
new vessels can be difficult to differenciate from normal dilated Bv
new BVs are active durring imflammation
IOP
may be result of imapirment of aqueous secreations by ciliary epithelium
culd be elevated due to a variaty of mechanisms
Treatmetn
topical steroids (predesilone)
cycloplegics to prevent posterior synchae
if affective then TAPER
if ineffective then increase frequency
if still ineffective then use systemic steroids
if cystoid macular oedema - periocular sterioids or systemic steroids