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Published on: January 10, 2025
Voriconazole versus natamycin as primary treatment in fungal corneal ulcers
Ritu Arora1, Deepa Gupta, Jawaharlal Goyal
1Guru Nanak Eye Centre, New Delhi, India.
Background:
To evaluate the efficacy of topical 1% voriconazole versus 5% natamycin in treatment of fungal corneal ulcers.
Design:
A prospective, randomized pilot study in a tertiary care hospital.
Participants:
Thirty patients of microbiologically proven fungal keratitis divided randomly in two groups of 15 patients each.
Methods:
Two groups were treated with either 5% natamycin (group A) or 1% voriconazole (group B) topically as a primary treatment for fungal keratitis. The mean size, depth of infiltrate and LogMAR visual acuity at presentation were comparable in both groups (P > 0.05). Patients were followed up for minimum of 10 weeks or till complete resolution of ulcer, whichever was later. Cultures to identify the causative organisms were performed.
Main Outcome Measure:
Time of resolution of the ulcer.
Results:
Twenty-nine of the total 30 patients showed complete resolution. Average time of resolution and gain in LogMAR visual acuity was 24.3 days and 1.12 in group A and 27.2 days and 0.77 in group B. These were comparable in the two groups (P > 0.05%). Aspergillus spp. (40%) and Curvularia spp. (30.0%) were found to be most common isolates.
Conclusion:
Topical 1% voriconazole was found to be safe and effective drug in primary management of fungal keratitis, its efficacy matching conventional natamycin. There was no added advantage of using topical 1% voriconazole over topical natamycin as primary treatment in fungal keratitis.
Insights
Topical 1% voriconazole and 5% natamycin are equally effective for treating fungal keratitis. Both treatments showed comparable resolution times and visual acuity gains in this pilot study.
Area of Science:
- Ophthalmology
- Mycology
- Infectious Diseases
Background:
- Fungal corneal ulcers require effective topical treatments.
- Comparing novel antifungals to established therapies is crucial for clinical practice.
Purpose of the Study:
- To evaluate the efficacy of topical 1% voriconazole compared to 5% natamycin for fungal keratitis.
- To determine if voriconazole offers an advantage over natamycin as a primary treatment.
Main Methods:
- Prospective, randomized pilot study.
- 30 patients with proven fungal keratitis randomly assigned to 5% natamycin or 1% voriconazole.
- Outcomes assessed included time to resolution and visual acuity over a minimum 10-week follow-up.
Main Results:
- 29 out of 30 patients achieved complete ulcer resolution.
- Resolution times (24.3 days vs. 27.2 days) and visual acuity gains (1.12 vs. 0.77 LogMAR) were comparable between groups (P > 0.05).
- Aspergillus spp. and Curvularia spp. were the most common fungal isolates.
Conclusions:
- Topical 1% voriconazole is safe and effective for primary fungal keratitis treatment.
- Voriconazole demonstrated comparable efficacy to conventional natamycin.
- No added benefit of voriconazole over natamycin was observed in this study.
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