Endophthalmitis is an inflammation of the inner coats of the eyeball that can be infective or non-infective. Infective endophthalmitis is classified as exogenous or endogenous. Acute bacterial endophthalmitis is a complication of intraocular surgery where the infective source is usually the patient's own flora. Signs include lid edema, chemosis, hypopyon, and retinal periphlebitis. Treatment involves intravitreal and systemic antibiotics, intravitreal and topical steroids, and sometimes pars plana vitrectomy to treat severe or non-improving cases. Panophthalmitis is a more severe inflammation of the whole eyeball that