Does vitamin a help night vision?

Answers (4)

• Striker

  02/17/2013

  Yes, vitamin A supplement can effectively help with night vision. Vitamin A plays an important role in vision development. Deficiency of vitamin A leads to eye dryness, blurry vision and even night blindness. There are two kinds of cells in eyes, rods and cones. Cones are sensitive to colors and details while rods are good at vision in dim circumstances for the rhodopsin. Vitamin A is a main materia for rhodopsin. So take vitamin A supplement helps night vision. Animal's liver is rich in vitamin A. People with night vision problem should have more animal liver and fresh vegetables and fruits in daily diet. Avoid getting fatigue and pay attention to a good habit of using eyes. Stay away from smoking and alcohol. Good luck.

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• walks_alone_

  02/17/2013

  The condition of poor nigh vision is also called as hemeralopia. And it vitamin A deficiency can be one of the causes of poor night vision. If this is the causes of your poor night vision, taking more vitamin A can help you get better night vision. But if it caused by other factors such as cataracts, which is the most common reason for poor night vision, taking more vitamin A won't give you too much help. So, you'd better visit an ophthalmologist and find the reason of poor night vision, then choice the right treatment.

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• hanes3777

  02/24/2013

  Night vision is the low ability to see in reduced illumination or in the dark. There are two means to make night vision possible, one is through biological means and the other technological means. Comparing with some other animals, suh as cats and dogs, we human beings have poor night vision, which is because we lack Tapetum lucidum. Tapetum luidum is is a layer of tissue in the eye of many vertebrate animals. It lies immediately behind the retina. It reflects visible light back through the retina, increasing the light available to the photoreceptors. The tapetum lucidum contributes to the superior night vision of some animals. Vitamin A has multiple functions, it is important for growth and development, for the maintenance of the immune system and good vision . So if you eat food ontain rich vitamin A, it is good for night vision. But it's not so highly active. In fact, if you want to have strong night vision, you may choose to wear the night vision goggles. Night glasses are telescopes or binoculars with a large diameter objective. Large lenses can gather and concentrate light, thus intensifying light with purely optical means and enabling the user to see better in the dark than with the naked eye alone.

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• Maye

  03/20/2013

  Yes, taking more food contain rich vitamin A is good for night vision. Vitamin A is responsible for vision under dark and light and shade transformation vision of important nutrients. In addition, your shade transformation is difficult to adapt. They may have dry eyes. Moreover, vitamin A is essential for mucous membrane and update of differentiation nutrition. So, you'd better wear the food with vitamin A. You could eat pear, apple, cherry, banana and longan. Having a good rest is also important.

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