STADIUM

PROGNOSIS

CORNEAL INJURY

LIMBIC ISCHEMIA

(% limbal circumference)

I

Excellent

Epithelial damage, absence of corneal opacity

0

II

Good

Cornea edematous, but iris visible

Less than 33%

III

Reserve

Total loss of corneal epithelium, stromal edema impeding visibility of iris details

33% - 50%

IV

Bad

Opaque cornea, iris and pupil not visible

Greater than 50%