Blindness (2008)

The story begins when a plague of blindness strikes and threatens all of humanity including an eye doctor who awakens one morning to find that he suffers from the unexplained disorder. He, along with other victims, is sent to a government detention center to quarantine the illness. His wife pretends to be blind to accompany him to the institution. Their time in the center grows more and more desperate as food and supplies dwindle and one of the other citizens exercises dictatorial control over the others after he acquires a weapon.