Question

Write the causes of night blindness and beriberi​

Answer 1

night blindness = It has many causes:

Nearsightedness.

Glaucoma.

Glaucoma medications that close the pupil.

Cataracts.

Diabetes.

Retinitis pigmentosa.

Vitamin A deficiency.

Keratoconus.

Beriberi is a disease caused by a vitamin B-1 deficiency, also known as thiamine deficiency. There are two types of the disease: wet beriberi and dry beriberi. Wet beriberi affects the heart and circulatory system.

Answer 2

Answer:

night blindness caused by lack of vitamins in the body especially the lackness of vitamin c....

night blindness shows a very poor vision in night and make human being difficult to see

and beri beri caused by the lack of vitamin b-1

beriberi can also make the heart fail

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