This is a duplicate of my Dry Eye Digest blogspot blog - to see the full archives back to 2005, please click on that link.
Early stage research but sounds promising.
VGX-100 Identified as Potential New Therapy for Dry Eye Disease
MELBOURNE, Australia, Sept. 13, 2011 /PRNewswire via COMTEX/ -- Data published in the scientific journal Archives of Ophthalmology generated by investigators at the Schepens Eye Research Institute led by Harvard University Professor Reza Dana.
VGX-100 significantly reduced inflammation and corneal epitheliopathy in a mouse model of Dry Eye Disease.