Preliminary data from a study funded by the National Rosacea Society have found that the tears of rosacea patients contain different proteins than the tears of people without rosacea. The results point to the potential for a screening test for ocular rosacea in the future.

The study, "Tear Proteins in Patients with Rosacea," is being conducted by a team led by Dr. Mark J. Mannis, chairman of the Department of Ophthalmology at the University of California - Davis.