1) ZEISS EnergizeMe Spectacle Lenses have been successfully tested with 130 contact lens wearers and 14 eye care professionals in 2016, Spain.
2) Srinivasan S and Subbaraman LN; The Science of Contact Lens Discomfort;Review of Optomotry, Aug 15 2015 Nichols JJ, Willcox MDP, Bron AJ, et al.The TFOS International Workshop on Contact Lens Discomfort: Executive Summary.Invest Ophthalmol Vis Sci. 2013;54:TFOS7–TFOS13. DOI:10.1167/iovs.13-13212
3) Patel, S., et al. „Effect of visual display unit use on blink rate and tear stability.“Optometry & Vision Science 68.11 (1991): 888-892. The Vision Council 2016 digitaleye strain report: Eyes Overexposed: The Digital Device DilemmaThe Vision Council 2015 digital eye strain report: Hindsight is 20/20/20: Protect youreyes from digital devices
4) Global ZEISS survey of 2,400 contact lens wearers and 40 eye care professionals in USA,Germany,China and Italy, 2015.