Methicillin-Resistant Staphylococcus aureus Acute Keratitis After Intracorneal Ring Segment Implantation

Gonzalo García de Oteyza1, Andrea Laiseca2, Paola Sauvageot2

  • 1Department of Cornea and Ocular Surface, Centro de Oftalmología Barraquer, Barcelona, Spain. gonzalo_gdeoteyza@hotmail.com.

Abstract

Insights

A severe methicillin-resistant Staphylococcus aureus (MRSA) infection developed in a child after keratoconus surgery. This rare complication required a corneal transplant to save the eye.

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Microbiology

Background:

  • Keratoconus is a progressive eye condition requiring surgical intervention.
  • Intracorneal ring segments are used to correct keratoconus.
  • Bacterial keratitis is a serious infection of the cornea.

Purpose of the Study:

  • To report the first case of acute bacterial keratitis caused by methicillin-resistant Staphylococcus aureus (MRSA).
  • To describe this complication following intracorneal ring segment implantation for keratoconus.
  • To highlight the management and outcome in a pediatric patient.

Main Methods:

  • A 13-year-old child with grade III keratoconus underwent uneventful intracorneal ring segment implantation.
  • Postoperative monitoring revealed a corneal infiltrate at the ring union site.
  • Microbiological cultures identified methicillin-resistant S. aureus (MRSA).

Main Results:

  • The patient developed acute bacterial keratitis due to MRSA three days post-surgery.
  • The infection was resistant to intensive topical and systemic antibiotic treatment.
  • Corneal melting occurred despite explantation of the ring segments.

Conclusions:

  • MRSA keratitis is a rare but severe complication after intracorneal ring segment implantation.
  • Aggressive infections may necessitate therapeutic penetrating keratoplasty.
  • Prompt diagnosis and management are crucial for preserving ocular integrity.

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