PURPOSE
The objective of the present study was to determine whether dry eye (DE) associated with primary Sjögren's syndrome (PSDE) and DE not associated with Sjögren's syndrome (NSDE) are related to an alteration of corneal innervation.
METHODS
Eleven healthy volunteers younger than 60 years (normal [N] < 60 group), 10 healthy volunteers 60 years of age or older (N > or = 60 group), 11 patien...