Development and Validation of a Standardized Palpebral Conjunctival Redness Scale

This study successfully established a reliable and clinically applicable PCR grading scale that addresses the unique anatomical and immunological characteristics of the palpebral conjunctiva. The moderate correlation between PCR and BCR measurements supports the necessity of independent assessment tools for different conjunctival regions. The PCR scale complements existing BCR assessments and provides enhanced diagnostic sensitivity for conditions affecting the eyelid margins and inner conjunctival surfaces. Further validation in larger, more diverse patient populations is recommended before widespread clinical implementation.