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[Severe keratomycosis. Diagnosis and treatment]
J M Legeais1, V Blanc, D Basset
1Département d'Ophtalmologie, Hôtel-Dieu de Paris.
Abstract:
We reported three consecutive cases of severe fungal keratitis initially undiagnosed by corneal scrapping. Corneal biopsy showed fungal elements of Paecilomyces lilacinus, Fusarium solani, Scedosporium apiospermum. Most cases of fungal keratitis could be treated successfully if adequate antifungal therapy were started early. Early and accurate diagnosis is of major importance. The results of our cases confirm the superiority of corneal biopsy over corneal scrapping. Corneal biopsy is a procedure of choice in suspected cases of keratomycosis in which corneal scrapings fail.
Insights
Diagnosing fungal keratitis is crucial for successful treatment. Corneal biopsy is superior to corneal scraping for identifying fungi like Paecilomyces lilacinus, Fusarium solani, and Scedosporium apiospermum when initial tests fail.
Area of Science:
- Ophthalmology
- Mycology
- Infectious Diseases
Background:
- Fungal keratitis is a serious eye infection that can lead to vision loss.
- Early and accurate diagnosis is critical for effective treatment.
- Traditional diagnostic methods like corneal scraping can sometimes be insufficient.
Observation:
- Three consecutive cases of severe fungal keratitis were initially misdiagnosed by corneal scraping.
- Corneal biopsy revealed fungal elements of Paecilomyces lilacinus, Fusarium solani, and Scedosporium apiospermum in these patients.
- These findings highlight the limitations of corneal scraping in certain fungal keratitis cases.
Findings:
- Corneal biopsy demonstrated superior diagnostic accuracy compared to corneal scraping for fungal keratitis.
- The study identified specific fungal pathogens: Paecilomyces lilacinus, Fusarium solani, and Scedosporium apiospermum.
- Timely and precise diagnosis is paramount for successful antifungal therapy.
Implications:
- Corneal biopsy should be considered a primary diagnostic procedure for suspected fungal keratitis, especially when scrapings are negative.
- Improved diagnostic methods can lead to earlier and more effective antifungal treatment, potentially preventing severe visual impairment.
- This study emphasizes the importance of considering advanced diagnostic techniques in challenging infectious keratitis cases.