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  • Title: Risk factors, microbiological profile, and treatment outcomes of pediatric microbial keratitis in a tertiary care hospital in Hong Kong.
    Author: Young AL, Leung KS, Tsim N, Hui M, Jhanji V.
    Journal: Am J Ophthalmol; 2013 Nov; 156(5):1040-1044.e2. PubMed ID: 23972308.
    Abstract:
    PURPOSE: To report the risk factors and microbiological profile of pediatric microbial keratitis cases in a tertiary care hospital in Hong Kong. DESIGN: Retrospective study. METHODS: Case records of patients <18 years old with microbial keratitis were reviewed over a period of 10 years, between January 2001 and December 2010. Risk factors, microbiological profile, and treatment outcomes were analyzed. RESULTS: Overall, 18 patients (13 female, 5 male) with unilateral microbial keratitis were included. The mean age was 12.4 years (range: 3-17 years). The most commonly associated risk factor was contact lens wear (15, 83.3%). Seven cases (38.8%) were associated with orthokeratology lenses. Two cases (11.1%) were related to intrinsic keratopathy and 1 case (5.5%) was infected secondary to trauma. Microbiological culture was positive in 16 cases (88.8%). Overall, Pseudomonas sp. was the most commonly isolated organism (10/16, 62.5%), followed by coagulase-negative Staphylococcus (5/16, 31.2%) and Corynebacterium sp. (2/16, 12.5%). All cases responded to intensive medical management with topical antibiotics. One case with posttraumatic keratitis required stepped surgeries with initial tectonic penetrating keratoplasty followed by lens aspiration and retinal detachment repair. At the last follow-up, 13 out of 17 eyes (76.5%) had best-corrected visual acuity ≥20/40. CONCLUSIONS: Contact lens wear was the most commonly encountered risk factor for the occurrence of microbial keratitis in the pediatric age group in our setting. Orthokeratology remains one of the leading causes of contact lens-related infections. The majority of the cases responded to medical management.).
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