1. Lemp MA. Report of National Eye Institute/Industry Workshop on clinical trials in dry eyes. CLAO J. 1995;21:221–232.
2. Shimazaki J. Dry Eye Research Group in Japan. Definition and criteria of dry eye. Ganka. 1995;37:765–770.
3. DEWS members. 2007 Report of the International Dry Eye Workshop (DEWS). Ocul Surf. 2007;5:65–204.
4. Shimazaki J. Dry Eye Research Group in Japan. Definition and diagnosis of dry eye 2006. J Eye. 2007;24:181–184.
5. Fahmy AM, Hardten DR. Treating ocular surface disease: new agents in development. Clin Ophthalmol. 2011;5:465–472.