Methicillin-resistant Staphylococcus aureus infectious keratitis following refractive surgery.

Abstract

PURPOSE:

To elucidate risk factors, clinical course, visual outcomes, and treatment of culture-proven methicillin-resistant Staphylococcus aureus (MRSA) infectious keratitis following refractive surgery.

DESIGN:

Interventional case series.

METHODS:

Multicenter chart review of 13 cases of MRSA keratitis following refractive surgery and literature review.

RESULTS:

Thirteen eyes of 12 patients, nine of whom were either healthcare workers or exposed to a hospital surgical setting, developed MRSA keratitis following refractive surgery. All patients presented with a decrease in visual acuity and complaints of pain or irritation in the affected eye. Common signs on slit-lamp biomicroscopy were corneal epithelial defects, focal infiltrates with surrounding edema, conjunctival injection, purulent discharge, and hypopyon. All patients were diagnosed with infectious keratitis on presentation and treated with two antibiotics. All eyes were culture-positive for MRSA.

CONCLUSIONS:

According to a computerized MEDLINE literature search, this is the first case series of MRSA infectious keratitis following refractive surgery, the first reports of MRSA keratitis after refractive surgery in patients with no known exposure to a healthcare facility, the first report of MRSA keratitis after a laser in situ keratomileusis (LASIK) enhancement, and the first reports of MRSA keratitis after prophylaxis with fourth-generation fluoroquinolones. MRSA keratitis is a serious and increasing complication following refractive surgery. Patients with exposure to a healthcare environment should be considered at additional risk for developing MRSA keratitis. However, in addition, surgeons should now be vigilant for community-acquired MRSA. Prompt identification with culturing and appropriate treatment of MRSA keratitis after refractive surgery is important to improve visual rehabilitation.

• Authors: Renée Solomon, Eric D Donnenfeld, Henry D Perry, Roy S Rubinfeld, Michael Ehrenhaus, John R Wittpenn Jr, Kerry D Solomon, Edward E Manche, Majid Moshirfar, Dennis C Matzkin, Reza M Mozayeni, Robert K Maloney
• Journal: American journal of ophthalmology (Am J Ophthalmol) Vol. 143 Issue 4 Pg. 629-34 (Apr 2007) ISSN: 0002-9394 [Print] United States
• PMID: 17320811 (Publication Type: Case Reports, Journal Article, Multicenter Study)

Chemical References

• Vancomycin
• Ofloxacin
• Methicillin

Topics

• Adult
• Corneal Ulcer (diagnosis, drug therapy, microbiology)
• Drug Therapy, Combination
• Eye Infections, Bacterial (diagnosis, drug therapy, microbiology)
• Female
• Health Personnel
• Humans
• Keratomileusis, Laser In Situ
• Lasers, Excimer
• Male
• Methicillin (pharmacology)
• Methicillin Resistance
• Middle Aged
• Ofloxacin (therapeutic use)
• Photorefractive Keratectomy
• Postoperative Complications
• Refractive Surgical Procedures
• Retrospective Studies
• Risk Factors
• Staphylococcal Infections (diagnosis, drug therapy, microbiology)
• Staphylococcus aureus (drug effects, isolation & purification)
• Surgical Flaps (microbiology)
• Vancomycin (therapeutic use)