Vitamin A Deficiency Night Blindness

Vitamin a deficiency is the major cause of severe diseases infections and preventable blindness in children. Night blindness is an early symptom of vitamin a deficiency. Vitamin a deficiency stops the production of these pigments leading to night blindness.

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Severe vitamin a deficiency can lead to night blindness several observational studies have reported a high prevalence of night blindness in developing nations 12 13 14 15 due to the extent.

Vitamin a deficiency night blindness. Vitamin a plays an important role in your vision to see the full spectrum of light your eye needs to produce certain pigments for your retina to work properly. It also affects the immune system and results in deaths from malaria diarrhoea and measles. Vitamin a works with proteins called opsins to produce a light sensitive pigment called rhodopsin in our bodies.

When there s a deficiency of vitamin a rhodopsin production declines leading to visual impairment in dark conditions. Orange vegetables carrots sweet potatoes pumpkin eggs and. Corrective lenses such as eyeglasses or contacts can improve nearsighted vision both during the day.

Night blindness caused by nearsightedness cataracts or vitamin a deficiency is treatable. It is one of the major causes of night blindness in pregnant women. Vitamin a is found in many foods like.

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