References
Boudouin C. A new approach for better comprehension of diseases of the ocular surface. J Fr Ophtalmol. 2007; 30(3):239-46 (article in French)
Subcommittee of the Dews International Dry Eye Workshop. Definition and Classification of Dry Eye Disease: Report of the Definition and Classification Subcommittee of the International Dry Eye Workshop. The Ocular Surface. 2007; 5(2): 75-92