Correlation analysis of the post-surgical increase in tear VIP concentrations
corneal AD
DRY EYE
Increases in VIP concentrations were correlated with dry eye indices and AD. In the LASEK group, TBUT1-3, corneal staining3, and OSDI3 were negatively correlated with VIP3-1 (R: -0.773, 
Correlation analysis between VIP concentration increase, dry eye symptom severity, and corneal AD post-surgery Graphs a-e are LASEK (EK) group, showing the correlation between VIP concentration increase (VIP3-1) and TBUT severity (TBUT1-3); (