Asylum quarantine and the armed ward
When a white blindness spreads through an unnamed city, the government interns the blind in an abandoned mental asylum guarded by soldiers who shoot anyone approaching the gate. Inside, a ward of men with a gun seizes the food deliveries and demands valuables and then the women of other wards in exchange for rations. The doctor's wife, the only person who can still see, secretly kills their leader with scissors, and a later fire lets the internees escape into a city where everyone has gone blind.
