Which Vitamin a Deficiency?

Vitamin A deficiency can be defined clinically or subclinically. Xerophthalmia

is the clinical spectrum of ocular manifestations of vitamin A deficiency; these range from the milder stages of night blindness and Bitot spots

Bitot spots

Bitot's spots are the buildup of keratin located superficially in the conjunctiva of human's eyes. They can be oval, triangular or irregular in shape. The spots are a sign of vitamin A deficiency and associated with drying of the cornea.

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Bitot's spots - Wikipedia

to the potentially blinding stages of corneal xerosis, ulceration and necrosis (keratomalacia

keratomalacia

Keratomalacia is an eye disorder that results from vitamin A deficiency. Vitamin A is required to maintain specialized epithelia (such as in the cornea and conjunctiva). The precise mechanism is still not known, but vitamin A is necessary for the maintenance of the specialized epithelial surfaces of the body.

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Keratomalacia - Wikipedia

).

What are the deficiencies of vitamin A?

Too little vitamin A can lead to inflamed skin, night blindness, infertility, delayed growth and respiratory infections. People with wounds and acne may have lower blood levels of vitamin A and benefit from treatment with higher doses of the vitamin.

Which is used for deficiency of vitamin A?

The treatment for mild forms of vitamin A deficiency includes eating vitamin A-rich foods. For more severe forms, a doctor may recommend eating more foods containing vitamin A in combination with taking vitamin supplements.