In our national reality, studies show that the incidence of corneal ulcers is higher in males, between 30 to 39 years, with ocular trauma as a major risk factor followed by the inadequate conservation and maintenance of contact lenses [2]. Bacteria are the most isolated microorganisms in corneal ulcers, especially Gram-positive ones. Among bacterial causes, 90% are caused by 4 main groups: Micrococcaceae, Streptococcus sp, Pseudomonas sp and members of the Enterobacter family [3]. Among the bacteria in the conjunctive microbiota, the main ones are coagulase-negative Staphylococcus and Corynebacterium sp, which have low pathogenicity. This characteristic leads, in general, to infecting corneal ulcers resulting from chronic eye diseases or eye injuries.