exercise for dry eye

Omega-3 and omega-6 fatty acids may help relieve dry eyes symptoms.
A recent study found that tear volume increased within hours after the use of caffeine. There's no specific research yet on caffeine and dry eyes, so it's not clear what effect, if any, caffeine might have on dry eyes symptoms. (quoted from http://www.mayoclinic.org/diseases-conditions/dry-eyes/basics/alternative-medicine/con-20024129)

Also drinking more water can help dry eyes. Dry eyes may be a signal that your body is dehydrated. The recommended amount of water is 8-10 glasses every day.(quoted from http://www.livestrong.com/article/300489-does-drinking-more-water-help-dry-eyes/)