Endogenous bacterial endophthalmitis. A report of 2cases

Streptococcus Group G of Unknown Source as a Rare Cause of Endogenous Endophthalmitis

Endogenous endophthalmitis occurs in the setting of an intraocular infection secondary to the spread of bacterial, viral, or fungal pathogens with a high likelihood of permanent vision loss if left untreated. This case describes a 33-year-old male with numerous risk factors presenting with sudden onset of symptoms consistent with endogenous endophthalmitis secondary to Streptococcus beta-hemolyticus group G bacteremia of unknown source. He was treated with broad-spectrum antibiotics and analgesics with improvement in symptoms.

A Case of Postoperative Endophthalmitis Caused by Streptococcus Bovis

PURPOSE

To report a case of postoperative endophthalmitis caused by Streptococcus bovis (S. bovis).

METHODS

Retrospective case report.

RESULTS

A 50-year-old healthy man presented with endophthalmitis 16 hours after silicone oil removal. Vitreous cultures remained positive for S. bovis. In addition to vitreous and anterior chamber lavage, the patient received five intravitreal injections in total. All the above aggressive measures did not effectively prevent the deterioration of the disease and the patient was discharged with a final outcome of retinal detachment and atrophia bulbi with no light perception.

CONCLUSIONS

To the best of our knowledge, this is the first report of postoperative endophthalmitis caused by S. bovis.

COMMUNITY-ASSOCIATED METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS SUBRETINAL ABSCESS IN A NONBACTEREMIC PATIENT TREATED WITH INTERNAL DRAINAGE AND RETINECTOMY

PURPOSE

To report a case of community-associated methicillin-resistant Staphylococcus aureus subretinal abscess that continued to progress, despite intravitreal and systemic antibiotic therapy.

METHODS

Retrospective chart review of a 77-year-old female patient with well-controlled diabetes mellitus who developed a left eye endophthalmitis and subretinal abscess from methicillin-resistant S. aureus colonization in the absence of any systemic focus of infection.

RESULTS

The abscess and endophthalmitis resolved after the second pars plana vitrectomy that included drainage of a subretinal abscess after the failure of initial pars plana vitrectomy, and intravitreal and systemic antibiotics. Retinal detachment due to proliferative vitreoretinopathy necessitated the third pars plana vitrectomy 2 weeks after the second pars plana vitrectomy.

CONCLUSION

The authors present an unusual case of methicillin-resistant S. aureus subretinal abscess in a patient with methicillin-resistant S. aureus colonization with negative blood, aqueous humor culture, and vitreous culture but a positive culture from subretinal aspirate.