Nyctalopia known as Night blindness is an inability of a person to see in low light conditions or at night. It is not a total loss of night vision. This vision impairment can be treated, but the treatment varies from depends from person to person. Deficiency of Zinc, Vitamin A, and Taurine causes night blindness.
Vitamin A deficiency is rare in the Western world, but it is a problem in the developing countries. Fortified margarine, organ meats, butter and other dairy products are good sources of Vitamin A. Carrots, sweet potatoes and apricots, and dark green leafy vegetables are the richest sources of beta-carotene, which the human body changes to Vitamin A.
What Can Cause This Vision Impairment?
Can It be Cured or Treated?
Any change in the visual pattern must never be taken lightly. One must immediately consult an ophthalmologist before any kind of self treatment. Failing night visions should not be self-treated with Vitamin A or beta carotene supplements.
Treatment for the underlying cause usually cures the night blindness. But it is also said that it has no cure completely but at the same time vision can be maximized with certain support to improve the visual sharpness. Retinal injuries which may be part of retinitis pigmentosa would require investigation and treatment as well.
Diagnosis would set in motion with a thorough medical checkup and would require the medical history too, concerning the night blindness.
Smoking must be avoided or else it would lead to all forms of visual loss and to reduce further damage. Sunglasses can prevent eye damage if it is worn, when exposed to sunlight.