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Keratitis in children as seen in a tertiary hospital in Africa
Adeyinka Ashaye1, Ayeni Aimola
1Department of Ophthalmology, University College Hospital, Ibadan, Nigeria. adeyinkaashaye@yahoo.com
Insights
Herpes simplex keratitis is the primary cause of childhood keratitis in Nigerian children, often leading to poor visual outcomes. This contrasts with other keratitis types where outcomes are generally better, suggesting underrepresentation in blindness studies.
Area of Science:
- Ophthalmology
- Pediatric Infectious Diseases
Background:
- Childhood blindness in developing nations is often linked to keratitis from traditional eye medications.
- Nutritional deficiencies and bacterial infections are presumed causes, but hospital-based outcomes may vary.
- Understanding specific etiological patterns of pediatric keratitis is crucial for targeted interventions.
Purpose of the Study:
- To identify the clinical types of pediatric keratitis at a Nigerian tertiary hospital.
- To compare these findings with existing international reports on childhood keratitis.
- To assess the visual outcomes associated with different keratitis etiologies in children.
Main Methods:
- A retrospective analysis of pediatric keratitis cases at University College Hospital, Ibadan, Nigeria (2003-2005).
- Data collected included patient demographics, etiological diagnosis of keratitis, and management outcomes.
- Visual acuity was assessed post-healing to determine visual outcomes.
Main Results:
- Herpes simplex keratitis (HSK) was the leading cause (49.5%) in 95 pediatric patients, often involving epithelial and stromal layers.
- Measles infection and malnutrition-associated keratitis occurred in 22.1% of cases.
- Bacterial/fungal keratitis (8.4%) and vernal ulcers (4.2%) were also identified, with very poor visual outcomes in bacterial/fungal cases.
Conclusions:
- HSK is the predominant cause of pediatric keratitis at this Nigerian tertiary hospital, with clinical presentations consistent with global reports.
- Except for HSK, most keratitis types were associated with very poor visual outcomes.
- Existing blindness studies may underestimate the prevalence of HSK in this region.
Background:
Blindness studies have shown that keratitis complicated by the use of traditional eye medications is a major factor of childhood blindness in developing countries. Most cases of such keratitis were presumably due to nutritional causes or bacterial infection. The patterns of outcome that are seen in hospitals may be different.
Objective:
To determine the clinical types of keratitis seen in children at a tertiary hospital and compare with other reports.
Method:
A retrospective analysis was conducted using the records of children who presented with keratitis to the eye unit of the University College Hospital, Ibadan, Nigeria, over a three-year period from January 2003 to December 2005. Information obtained were the demographic data, the etiological type of keratitis and visual outcome of management.
Result:
Ninety-five patients with keratitis seen during this three-year period were children. Of these, 47 (49.5%) patients had presumed herpes simplex keratitis; 78.9% of children with herpes simplex keratitis presented with combined epithelial and stromal disease; 21 (22.1%) had keratitis that was associated with a recent measles infection and protein calorie malnutrition. Fifteen (15.8%) had keratitis associated with phlyctenular keratoconjunctivitis, eight (8.4%) patients had bacterial/fungal keratitis, while four (4.2%) had vernal ulcers. Both the right and left eyes were affected in 47.6% and 52.4% of cases, respectively. Bilateral keratitis occurred in eight of the children with measles, and six patients with herpes simplex keratitis. Fifty-nine eyes had visual acuity recorded after the keratitis healed. Of these, the visual outcome was very poor in six (20.0%) eyes with herpes simplex keratitis and eight (100%) eyes with bacterial/fungal keratitis. All eyes with suppurative keratitis associated with measles developed dense corneal scars or were perforated.
Conclusion:
Herpes simplex keratitis was the leading cause of keratitis in children seen at this tertiary hospital, and clinical presentations do not differ from those reported in other populations. Very poor visual outcome was associated with all types of keratitis except those with herpes keratitis. Blindness studies may underrepresent the burden of herpes simplex keratitis in the location of this study.
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