Question

1. Deficiencyof Vitamin Acauses:​

Answer 1

Answer:

Impaired dark adaptation (night blindness) due to lack of the photoreceptor pigment rhodopsin.

Xerophthalmia: dry, thickened conjunctiva and cornea.

Bitot spots: keratinized growths (metaplasia) on the conjunctivae causing hazy vision.

Explanation:

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