Active vision system comprising: first and second customizable ophthalmic lenses (22) having an electrically variable occultation between substantially transparent and substantially obscured states； identification device (32) adapted for identifying whether the wearer's viewing state is in a near vision viewing state when wearing the customizable ophthalmic lenses； and processor (40) configured to: switch the electrically variable occultation of one of the customizable ophthalmic lenses (22) from the first to the second light occultation states when a near vision viewing state (NVVS) is identified by the identification device while at the same time the other lens is in the transparent state； and control the electrically variable occultation of the customizable ophthalmic lenses (22) such that they are in the first light occultation state when the wearer's viewing state is identified as being different from a near vision viewing state (NVVS) by identification device (32).
