Figure 1. Correlations of changes in tear osmolarity, corneal fluorescein staining, and symptoms among all studied subjects with dry eye disease.
Correlation between changes in symptoms and corneal fluorescein staining (Left). Correlation between changes in symptoms and tear osmolarity (Center). Correlation between changes in corneal fluorescein staining and tear osmolarity (Right). OSDI, Ocular Surface Disease Index©; CFS, corneal fluorescein staining; OSM, tear osmolarity.