The present invention relates to a composition comprising a natural extract containing anthocyanins and an agent for enhancing vigilance, and to a method for alleviating visual discomfort related to or caused by oxidative stress comprising administering via transmucosal route the composition of the invention, said composition being in a form adapted to transmucosal administration, said form preferably being a chewing gum, an orodispersible/orodisintegrating tablet or film or a buccal spray.
