1. Ocular Surface and Contact Lens Research Laboratory, Faculty of Optometry, University of Santiago de Compostela, Santiago de Compostela, Spain
2. Instituto Oftalmológico Fernández-Vega, Oviedo, Spain
3. Clinical & Experimental Optometry Research Lab, Center of Physics (Optometry) - School of Sciences, University of Minho, Gualtar – Braga, Portugal