Keratitis, an inflammation of the cornea, can result from alterations in corneal anatomy, weakened immunity, or impaired defense mechanisms. The causative agent of bacterial keratitis, which can be either Gram-positive or Gram-negative organisms, determine the nature of the infection. The severity and progression of bacterial keratitis hinge on the virulence of the infecting microorganism and various host factors, such as preexisting ocular surface disorders, ocular surgery, eye injuries, compromised immunity, and systemic diseases.