To evaluate a patient for the toxic anterior segment syndrome (TASS).


Clinical features:

(1) recent history (usually within 24 hours, range 12-48 hours) of cataract surgery or other operation to the anterior segment of the eye

(2) corneal edema

(3) accumulation of leukocytes (pus) in the anterior chamber (between the cornea and iris)

(4) potential for loss of visual acuity


Since many cases are associated with some type of contamination, a case may be part of an outbreak.


Differential diagnosis:

(1) post-operative infection

(2) ischemia of the anterior segment


Management usually involves use of topical steroids and/or topical nonsteroidal anti-inflammatory agents.


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