[Dry eye--etiopathogenic and histopathologic correlations]

Area of Science:

• Ophthalmology
• Pathology
• Immunology

Context:

• Dry eye syndrome (DES) is a prevalent ocular surface condition.
• The underlying mechanisms, particularly the role of inflammation, require further elucidation.

Purpose:

• To investigate the involvement of inflammatory processes in the pathogenesis of dry eye syndrome.
• To correlate clinical findings with histopathological changes in affected conjunctival tissues.

Summary:

• A study of 64 patients with dry eye symptoms utilized questionnaires, Schirmer's test, tear film breakup time (BUT), and conjunctival histopathology.
• Histopathological examination revealed loss of calyciforme cells, squamous metaplasia, and subepithelial inflammation.
• While Schirmer's test and BUT showed limited correlation with symptoms, BUT correlated significantly with symptom severity and disease duration, supporting inflammation's role.

Impact:

• Histological findings confirm inflammation as a critical factor in dry eye pathogenesis.
• This study provides insights into the cellular and tissue-level changes associated with dry eye.
• Understanding the inflammatory basis can guide future therapeutic strategies for dry eye syndrome.