-Grade 1: ulcer has a clear base and favorable outcome.
These ulcers re-epithelize with mild scarring on medical treatment.
-Grade 2: ulcers have inflammatory debris at the base and exhibit a poor response to medical therapy.
The grade 2 ulcers are prone to infectious keratitis.
Regular surgical debridement of these ulcers is necessary for rapid healing.
-Grade 3: ulcers have a large base and elevated plaque.
These ulcers are generally refractive to medical treatment and surgical intervention in the form of AMT is necesssary.
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Image from Rajan Eye Care Hospital