Collagen cross-linking and corneal infections
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Updated: May 11, 2026
Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
Published on: November 12, 2015
Joanne B Tayapad1, Aileen Q Viguilla, Johann M G Reyes
1Medical Arts Tower, The Medical City, Pasig City, Philippines.
Purpose Of Review:
This review presents current data regarding the use of collagen cross-linking in the management of corneal infections. Infectious keratitis can lead to blindness without proper antimicrobial therapy. The disease can still progress and lead to corneal melt despite early detection and management. The aggressive nature of corneal pathogens and the threat of antibiotic-resistance make it necessary to develop newer ways of managing this rapidly progressive condition.
Recent Findings:
Collagen cross-linking is a noninvasive ocular surface procedure that is used to effectively strengthen the cornea. This technique presents as a novel treatment option to halt the progression of keratoconus and ectasia. More recently, however, several articles have demonstrated the effectiveness of cross-linking in treating infectious keratitis via direct microbiologic cure and possibly, inhibition of corneal enzymatic degradation by common pathogenic organisms.
Summary:
Current literature reveals that corneal collagen cross-linking holds promise in treating infectious keratitis. However, larger-scale, randomized, controlled trials comparing cross-linking to standard antibiotic therapy are still warranted to support these findings.
Insights
Collagen cross-linking shows promise for managing infectious keratitis, offering a potential new treatment beyond antibiotics. Further research is needed to confirm its effectiveness against aggressive corneal infections.
Area of Science:
- Ophthalmology
- Microbiology
- Biomaterials Science
Background:
- Infectious keratitis, a leading cause of blindness, can progress to corneal melt despite antimicrobial therapy.
- Aggressive pathogens and rising antibiotic resistance necessitate novel treatment strategies for corneal infections.
Purpose of the Study:
- To review current data on collagen cross-linking for managing corneal infections.
- To explore collagen cross-linking as an alternative or adjunct therapy for infectious keratitis.
Main Methods:
- Review of recent literature on collagen cross-linking applications in ophthalmology.
- Analysis of studies demonstrating the efficacy of cross-linking in infectious keratitis models.
Main Results:
- Collagen cross-linking strengthens the cornea and has shown effectiveness in treating infectious keratitis.
- The procedure may provide a direct microbiologic cure and inhibit enzymatic degradation by pathogens.
Conclusions:
- Corneal collagen cross-linking presents a promising therapeutic option for infectious keratitis.
- Larger randomized controlled trials are required to validate these findings against standard antibiotic treatments.
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