EDUCATION (CBSE/UGC NET)

Detailed explanation-1: -Xerophthalmia is the clinical spectrum of ocular manifestations of vitamin A deficiency; these range from the milder stages of night blindness and Bitot spots to the potentially blinding stages of corneal xerosis, ulceration and necrosis (keratomalacia ).

Detailed explanation-2: -Vitamin A deficiency is when your body lacks the amount of vitamin A it needs to function properly. Vitamin A deficiency can cause vision loss and blindness. It can also lead to complications with your skin, heart, lungs, tissues and immune system.

Detailed explanation-3: -The eye changes that occur from vitamin A deficiency are collectively called Xerophthalmia. 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.

Detailed explanation-4: -Drying and wrinkling of the outer layer of the eye or conjunctiva. Night blindness, an eye disease in which people cannot see in dim light. Ulcers or scars on the cornea. Bitot’s spots, or white spots on conjunctiva. Softening of the cornea. 14-Mar-2022