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Night blindness is poor vision at night or in dim light.
Alternative NamesNyctanopia; Nyctalopia; Night blindness
ConsiderationsNight blindness may cause problems with driving in the evening or at night. People with night blindness often have trouble seeing the stars on a clear night.
Common Causes- Birth defects
- Cataracts
- Retinitis pigmentosa
- Use of certain drugs
- Vitamin A deficiency
In some cases, the eyes may simply have trouble adapting to darkness. The problem may not be due to another medical condition. However, it is often linked to myopia(nearsightedness).
Home CareTake safety measures to prevent accidents in the areas of low light. Avoid driving a car at night.
Vitamin A supplements may be helpful.
Call your health care provider ifIt is important to have a complete eye exam to determine the cause, which may be treatable. Call your eye doctor if symptoms of night blindness persist or significantly affect your life.
What to expect at your health care provider's officeYour health care provider will examine you and your eyes. The goal of the medical exam is to determine if the problem can be corrected (for example, with new glasses or cataract removal), or if the problem is due to something more serious.
The doctor may ask you questions, including:
- When did the night blindness begin?
- Did it occur suddenly or gradually?
- Does it happen all the time or just sometimes?
- How severe is the night blindness?
- Are you nearsighted?
- Do you have other vision changes?
- What other symptoms do you have?
- Do you have unusual stress, anxiety, or a fear of the dark?
- Does use of corrective lenses improve night vision?
- What medications do you use?
- How is your diet?
- Have you recently injured your eyes or head?
- Do you have a family history of diabetes?
A slit lamp examination may be done.
What else can I help you with?
What are the different types of blindness?
color blindness night blindness snow blindness
What is causes night blindness?
night blindness is caused due to the deficiency of vitamin a
Is there a vitamin that cures night blindness?
Vitamin A is used to cure night blindness.
What research has been done on night blindness?
Congenital night blindness. This is an inherited, stable disease in which persons suffer from night blindness. Recent advances in gene mapping have identified several mutations responsible for this form of night blindness.
Does a lack of vitamin C cause night blindness?
No, a lack of vitamin C does not cause night blindness, but it can cause scurvy. A lack of vitamin A causes night blindness.
Does liver cures night blindness?
The liver of a mammal is very high in vitamin A. This vitamin is said to help with night blindness and blindness in general.
What problem caused by Deficiency of vitamin A?
if you lack vitamin a you get night blindness
What does malnutrition?
night blindness
Which disease is cause by lack ofvitamin A?
In early childhood, blindness. Later on, various problems with immune system, cancer, etc. Most commonly, night blindness if the person isn't completely blind from a lack of Vitamin A in youth.
What is the kind of blindness that Vitamin A deficiency causes?
The first sign of Vitamin A deficiency is night blindness. Severe Vitamin A deficiency can cause Xerophthalmia (dry eye in which the eyes cannot produce tears) and complete blindness.
What does malnutrition cause?
night blindness
Night blindness can be treated with what vitamin?
A
