1. Lemp LA, Crews LA, Bron AJ, Foulkes GN, Sullivan BD. Distribution of aqueous deficient and evaporative dry eye in a clinic-based patient cohort: a retrospective study. Cornea 2012;31(5):472-8.
2. Baudouin C et al. Role of hyperosmolarity in the pathogenesis and management of dry eye disease: Proceedings of the OCEAN Group Meeting. The Ocular Surface 2013; 11(4) 246-258.
3. International Dry Eye Workshop. Management and therapy of dry eye disease: Report of the management and therapy subcommittee of the International Dry Eye Workshop (2007). The Ocular Surface 2007;5:163-178.
4. Tressler CS, Beatty R, Lemp MA. Preservative use in topical glaucomamedications. The Ocular Surface 2011; 9:140-158.
5. Lopez B, Ubel J. Quantitative evaluation of the corneal epithelial barrier effect of artificial tears and preservatives. Current Eye Research 1991;10:645-656.