What Causes Night Blindness (Nyctalopia)?

Cataracts

Cataracts occur commonly in individuals over sixty years old and develop when abnormal amounts of protein build up in the eye's lens. The protein buildup acts like a shield or layer between an individual's eyes and the world, so their vision may be clouded or blurred. Patients with cataracts also tend to have trouble filtering light, which can lead to increased blurring and night blindness. Night blindness caused by cataracts is generally accompanied by blurring and glare from light sources like street lamps, headlights, and dull overhead light sources. It may be difficult to drive during the night. There may also be nearsightedness or changes in the way a patient perceives color.

Learn about the next cause behind night blindness now.