Recent studies are showing that 70% of people without vision are having problem with their circadian rhythm, a condition called Non-24 circadian rhythm disorder. Non-24 has some serious consequences: patients are gaining weight, falling asleep during the day, not sleeping at night, developing anxiety, and even suffering from depression.
If the person in question has some vision, but is wearing a prosthetic eye that prevents light from penetrating, there is a solution: a transparent pupil. By allowing the eye to see light, a person’s circadian rhythm can be reset to help treat their condition. Other treatments are currently being researched. You can learn about them at non-24.com.