This document describes the symptoms, signs, and differential diagnosis of uveitis. The key symptoms are dull aching and throbbing pain that is worse at night and referred to the forehead and scalp. Examination findings include lid edema, keratic precipitates, aqueous cells and flare, iris nodules and posterior synechiae, changes to the lens and intraocular pressure, and complications such as glaucoma. Granulomatous and non-granulomatous uveitis can be differentiated based on features such as onset, pain, photophobia, ciliary congestion, and characteristics of keratic precipitates, aqueous flare, iris involvement, and posterior synechiae. Careful slit lamp
4. 4 4
1
Dull aching;
Throbbing sensation;
Worse at night;
Referred mainly to forehead and scalp.
2
Due to circumcorneal congestion;
Which is a result of active hyperemia of
anterior ciliary vessels due to effect of toxins,
histamine and histamine-like substances and
axon reflex.
SYMPTOMS
5. 4
5
3
Due to reflex between sensory
fibres of 5th nerve (which are
irritated) and motor fibres of 7th
nerve, supplying the orbicularis
oculi muscle
occurs as a result of
lacrimatory reflex mediated by
5th nerve (afferent) and
secretomotor fibres of 7th
nerve (efferent).
6. 6
5
DEFECTIVE VISION
May vary from slight blur in early phase to
marked deterioration in late phase.
Factors responsible include:
•Induced myopia due to ciliary
spasm,
•Corneal haze due to odema and
KPs,
•Aqueous turbidity,
•Pupillary block due to exudates,
•Complicated cataract,
•Vitreous haze,
•Cyclitic membrane,
•Associated macular odema,
•Papillitis or
•secondary glaucoma
8. 8
It is usually mild, may
accompany a severe attack
of acute anterior uveitis.
Lid Odema
A
9. It is marked in acute
iridocyclitis and minimal in
chronic iridocyclitis.
While it should be
differentiated from acute
conjunctivitis, where it is
superficial congestion.
9
B