Visually depicting sightlessness is a tough task for even the most inventive of moviemakers. (Derek Jarman’s 1993 film Blue, in which Tilda Swinton and others talk over a hypnotically static shade of the title color, remains the experimental gold standard.) The re-created documentary Notes on Blindness takes a distinctly proactive approach to this dilemma, utilizing a steady array of clever effects to depict the rapidly deteriorating vision of its subject. While the film’s other device of having actors lip-synch from existing tape recordings may seem clunky in theory, the sounds and images come together beautifully in practice.