Bron AJ, Tiffanya JM, Gouveiaa SM et al. (2002) Functional aspects of the tear film lipid layer. Experimental Eye Research 78(3): 347–360

Drummond M, Sculpher M, Torrance G, et al. (2005) Methods for economic health valuation of health care programmes, 3rd ed. Oxford: Oxford University Press

Finis D, Hayajneh J, Konig C et al. (2014a) Evaluation of an automated thermodynamic treatment (LipiFlow) system for meibomian gland dysfunction: a prospective, randomized, observer-masked trial. The Ocular Surface 12(2):146–154

Finis D, Hayajneh J, Konig C et al. (2014b) Six-month effects of a thermodynamic treatment for MGD and implications of meibomian gland atrophy. Cornea 33:1265–1270

Friedland BR, Fleming CP, Blackie CA et al. (2011) A novel thermodynamic treatment for meibomian gland dysfunction. Current Eye Research 36(2): 79–87

Greiner JV (2012) A single LipiFlow thermal pulsation system treatment improves meibomian gland function and reduces dry eye symptoms for 9 months. Current Eye Research April 37(4): 272–8

Greiner JV (2013) Long-term (12-month) improvement in meibomian gland function and reduced dry eye symptoms with a single thermal pulsation treatment. Clinical and Experimental Ophthalmology 41(6): 524–530

Lane SS, DuBiner HB, Epstein RJ et al. (2012) A new system, the LipiFlow, for the treatment of meibomian gland dysfunction. Cornea 31(4): 396–404

Lemp MA, Crews LA, Bron AJ et al. (2012) Distribution of aqueous-deficient and evaporative dry eye in a clinic-based patient cohort: a retrospective study. Cornea 31(5): 472–8

Louis TA, Lavori PW, Bailar JC et al. (1984) Crossover and self-controlled designs in clinical research. The New England Journal of Medicine 310: 24–31

NHS Choices (2014a) Dry eye syndrome [Last accessed: 19th January 2015]

NHS Choices (2014b) NHS eye care service [Last accessed: 19th January 2015]

NHS Choices (2014c) Dry eye syndrome – Self-help [Last accessed: 19th January 2015]

NHS Choices (2014d) Dry eye syndrome – Treatment [Last accessed: 27th January 2015]

Nichols KK, Foulks GN, Bron AJ et al. (2011) The International Workshop on Meibomian Gland Dysfunction: Executive summary. Investigative Ophthalmology and Visual Science, Special Issue 52(4): 1922–9