Microbial keratitis, commonly called as 'corneal ulcer' is an ophthalmic emergency. The prompt management of corneal infection is required to limit its morbidity, which mandates a good knowledge of its varied clinical presentation, basic knowledge of the microorganisms involved, various surgical / non surgical treatment options and follow-up.Corneal infections quite often results in corneal blindness, which is the second most common cause of treatable blindness after cataract. The purpose of this instruction course is to tell the attendee ' how best to treat corneal infections at present' Level - Basic to intermediate