# Endophthalmitis caused by Enterococcus faecalis: cytological and bacteriological diagnosis using vitreous fluid

## TL;DR

A 66-year-old man with endophthalmitis caused by Enterococcus faecalis was diagnosed using vitreous fluid analysis.

## Contribution

The study demonstrates the effectiveness of combining cytological and bacteriological analysis of vitreous fluid for diagnosing endophthalmitis.

## Key findings

- Vitreous fluid analysis confirmed the presence of Enterococcus faecalis in a case of endophthalmitis.
- Cytological and bacteriological studies of vitreous fluid are effective for diagnosing endogenous endophthalmitis.

## Abstract

This case report aims to describe the diagnostic method and the clinical course of endophthalmitis caused by Enterococcus faecalis.

A 66-year-old man presented with sudden, severe pain and acute vision loss in his left eye. Ocular examination revealed significant intraocular inflammation and dense vitritis, suggesting endogenous endophthalmitis. Systemic evaluation identified colonic diverticulosis as a potential source of infection. Pars plana vitrectomy was performed, and analysis of the vitreous fluid, including cytological and bacteriological studies, confirmed the presence of Enterococcus faecalis.

The vitreous fluid is an adequate sample for characterizing endophthalmitis by combining cytological and bacteriological analyses.