Vitamin A Deficiency Eye Disease

Vitamin a deficiency is the leading cause of preventable blindness in children worldwide.

Vitamin a deficiency eye disease. In the early stages of vitamin a deficiency nyctanopia also known as night blindness may develop. Without enough vitamin a your eyes cannot produce enough moisture to keep them properly lubricated. The eye changes that occur from vitamin a deficiency are collectively called xerophthalmia. Vitamin a daily value.

Night blindness is an early symptom of vitamin a deficiency. An estimated 250 000 to 500 000 children become blind every year because of vitamin a deficiency. Vitamin a deficiency can cause a spectrum of eye diseases including xerophthalmia dryness of the conjunctiva and cornea. Vitamin a deficiency also causes damage to the retina which also contributes to blindness.

Because vitamin a also is important for resistance to infection and a healthy immune system vitamin a deficiency can lead to death from respiratory and other infections. Vitamin a works with proteins called. A widely observed characteristic of vad bitot s spots are. It includes night blindness conjunctival and corneal dryness xerosis distinct white coloured patches on the conjunctiva bitot s spot corneal ulceration keratomalacia and corneal scarring.

If the symptoms of bitot s. Eye diseases night blindness.