Photojournalist Jérôme Gence has turned his lens on "The Screen Generation", documenting the daily lives of young people immersed in a digital culture that englobes both the virtual and real worlds, often at the same time. As his exhibition goes on show at the 36th Visa Pour L'Image photojournalism festival, Jérôme tells us about what he discovered while making the series, including the psychological consequences of childhoods illuminated by the glow of tablets and smartphones.