Question

write causes and symptoms of following diseases 1) Night blindness 2) Rickets​

Answer 1

Rickets is the softening and weakening of bones in children, usually because of an extreme and prolonged vitamin D deficiency. Rare inherited problems also can cause rickets. Vitamin D helps your child's body absorb calcium and phosphorus from food
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Answer 2

Answer:

1) Causes are related to health conditions that can contribute to night blindness are birth defects, retinitis pigmentosa, cataracts, myopia, glaucoma drugs, longstanding or uncontrolled diabetes, diabetic retinopathy, and, as mentioned, a vitamin A deficiency. The main symptom of night blindness is the inability or difficulty to see at night or in darkness.