Intravitreal antibiotic injection is a medical procedure used to treat severe ocular infections such as endophthalmitis, which is an infection of the vitreous humor or the inner eye. During the procedure, antibiotics are injected directly into the vitreous cavity, where they can effectively target the infection site. This method allows for a higher concentration of the antibiotic to reach the affected area, ensuring more effective treatment.

Intravitreal antibiotic injections are commonly used in cases where topical or systemic antibiotics would not be effective. This procedure is performed under local anesthesia, and patients typically recover quickly.