Endophthalmitis is a serious infection that affects the interior of the eye, particularly the vitreous fluid and retina. Synonyms for the term include "ocular infection," "intraocular infection," and "eye abscess." This condition is typically caused by bacteria that invade the eye, with risk factors including cataract surgery, trauma, and certain systemic diseases. Endophthalmitis is considered a medical emergency, as it can lead to significant vision loss or even complete blindness if left untreated. Treatment options may include the administration of antibiotics, vitrectomy surgery to remove the infected vitreous fluid, and close monitoring to prevent any further complications.