1 A mathematical determination of the amount or number of something: finding ways of saving money involves complicated calculations [mass noun]: the calculation of depreciation. More example sentences. Synonyms. 1  Precise mathematical calculations are worked out and this determines how a person's life is affected.
A vitamin A deficiency can lead to a vision condition called, Keratomalacia. Symptoms of this condition include: night blindness, dry eyes (often extreme cases), blurred or clouded vision, and softening of the cornea.
Mild forms of vitamin A deficiency may cause no symptoms. However, there may still be an increased risk of developing respiratory infections and gastroenteritis, and delayed growth and bone development. There is also a risk of infertility secondary to impaired spermatogenesis, and an increased risk of miscarriage.