Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Morten Schjerven Magno: Nothing to disclose. Jonatan Olafsson: Nothing to disclose. Marie Beining: Nothing to disclose. Emily Moschowits: Nothing to disclose. Neil Lagali: Nothing to disclose. James S. Wolffsohn is the Chief Scientific Officer of the International Myopia Institute, on the Executive of the Tear Film and Ocular Surface Society and Academic Chair to the BCLA. Honoraria for consultancy received from AtiaVision, Bausch and Lomb, Alcon, CooperVision, Johnson and Johnson Vision, Nevakar, Novartis and Thea Pharmaceutical. He has also received research funding from Alcon, Allergan, Johnson and Johnson Vision, Novartis, M2C Therapeutics, Rayner, and Thea Pharmaceuticals. He is a founder and shareholder in Aston Vision Sciences, Eyoto and Wolffsohn Research ltd. Jennifer P. Craig is founder of the Ocular Surface Laboratory at the University of Auckland, New Zealand which in the last three years has delivered talks for and/or received financial support for research and education in the area of dry eye and ocular surface disease from Alcon, Azura Ophthalmics, E-Swin, Johnson & Johnson Vision, Laboratoires Théa, Manuka Health NZ, Novartis, Resono Ophthalmic, and Topcon. Jelle Vehof has received financial support for talks and education in the area of dry eye and ocular surface disease from Santen. Tramedico, Théa Pharma and Horus Pharma, and is consultant for Santen and Tramedico. Vehof is the Dutch Global Ambassador for Tear Film and Ocular Surface Society (TFOS). Darlene A. Dartt:Nothing to disclose. Tor Paaske Utheim is co-founder and co-owner of The Norwegian dry eye clinic and the Clinic of eye health, Oslo, Norway, which delivers talks for and/or receives financial support from the following: ABIGO, Alcon, Allergan, AMWO, Bausch&Lomb, Bayer, European school for advanced studies in ophthalmology, InnZ Medical, Medilens Nordic, Medistim, Novartis, Santen, Specsavers, Shire Pharmaceuticals and Thea Laboratories. He has served on the global scientific advisory board for Novartis and Alcon as well as the European advisory board for Shire Pharmaceuticals. Utheim is the Norwegian Global Ambassador for Tear Film and Ocular Surface Society (TFOS), a Board Member of the International Ocular Surface Society, a Consultant at the Norwegian Association for the Blind and Partially Sighted, and the Editor-in-Chief of Oftalmolog, an eye journal distributed to all eye doctors in the Nordic region since 1980.