It is also called as nyctalopia and it is a type of vision impairment. People may experience poor vision at night or in dimly lit environments.

Causes

• Nearsightedness or blurred vision when looking at faraway objects
• Cataracts, or clouding of the eye’s lens
• Retinitis pigmentosa, which occurs when dark pigment collects in your retina and creates tunnel vision
• Usher syndrome, which is a genetic condition that affects both hearing and vision
• Vitamin A deficiency
• Keratoconus
• Sun Exposure

Old adults have a greater risk of developing cataracts.

Symptoms

• Difficulty seeing in the dark
• Poor vision when driving

Treatment

A doctor will take a detailed medical history and examine your eyes to diagnose night blindness.

Blood testing can measure your vitamin A and glucose levels. No one cannot prevent night blindness that is the result of birth defects or genetic conditions. Eat foods rich in antioxidants vitamins and minerals, which may help prevent cataracts. Eat food that contains high levels of vitamin A to reduce the risk of night blindness. Orange-color foods are excellent sources of vitamin A, including:

• Cantaloupes
• Sweet potatoes
• Carrots
• Pumpkins
• Butternut squash
• Mangoes