Clinical Report: Metabolomic Analysis of Tears in BKC vs HSK

Overview

This study identifies distinct tear metabolomic profiles in patients with blepharokeratoconjunctivitis (BKC) and herpes simplex keratitis (HSK). Key metabolites such as carnosol and sorbitol were identified in the analysis.

Background

Blepharokeratoconjunctivitis (BKC) and herpes simplex keratitis (HSK) present with overlapping clinical features, complicating accurate diagnosis. Misdiagnosis rates can exceed 30%, particularly in children, due to reliance on subjective assessments and limitations of current laboratory tests.

Data Highlights

Key Findings

• HSK exhibited 21 altered metabolites compared to healthy controls.
• BKC showed 19 altered metabolites compared to healthy controls.
• L-isoleucine, L-phenylalanine, and pantothenol were significantly lower in both HSK and BKC.
• 4-dodecylbenzenesulfonic acid and carnosol were lower in HSK-specific samples.
• Sorbitol was lower in BKC-specific samples.
• A combined panel of metabolites demonstrated good specificity and sensitivity for differentiating BKC from HSK.

Clinical Implications

The identification of specific metabolites in tears may aid in the differential diagnosis of BKC and HSK.

Conclusion

The study provides insights into the metabolomic differences between BKC and HSK. Further research is needed to validate these findings.

Related Resources & Content

1. Ophthalmology Management, 2016 -- Three Beneficial Diagnostic Options
2. Corneal Physician, 2020 -- Dry Eye Disease Treatments: Pharmaceutical vs Procedural
3. Corneal Physician, 2023 -- Why We Should Care About Blepharitis
4. Definition and Diagnostic Criteria for Pediatric Blepharokeratoconjunctivitis - PMC
5. Contact Lens Spectrum — Maintaining Ocular Surface Wellness
6. Definition and Diagnostic Criteria for Pediatric Blepharokeratoconjunctivitis - PMC
7. https://rightdecisions.scot.nhs.uk/media/b5jiqfls/keratitis-herpes-158-v7.pdf
8. [Translated article] The need for prolonged antiviral use to prevent recurrences of herpes simplex virus ocular disease: A systematic review - PubMed