WHAT TO TRY FIRST
According to the British National Health Service, the first thing people should do if they are bothered by dry eyes syndrome is to identify and change any factors causing the problem. For example, avoiding smoke or medications like antihistamines, decongestants water pills, certain antidepressants or high blood pressure medicines.
Mild-to-moderate symptoms usually respond to artificial tears.
WHAT ELSE TO TRY
For people who cannot identify and avoid the cause of their dry eyes and whose symptoms do not improve sufficiently with artificial tears other treatments to consider are corticosteroid eye drops, oral tetracyclines or cyclosporine eye drops.
NHS Choices. Dry eye syndrome - treatment. Published March 2014.