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.
Ah, vitamin A. Cancer fighter, bacteria killer and wrinkle inhibitor. This all important nutrient is well known for its undeniable ability to defend against viruses and enhance immunity. Thus, it should come as no surprise that vitamin A can also help relieve aqueous-deficient and evaporative dry eye symptoms.Getting enough vitamin A (aka retinol) in your diet is essential for good vision health. In fact, vitamin A deficiency can cause cell mutations to the cornea.Often, this disrupts the tear film and leads to dry, irritated eyes.h, vitamin A. Cancer fighter, bacteria killer and wrinkle inhibitor. This all important nutrient is well known for its undeniable ability to defend against viruses and enhance immunity. Thus, it should come as no surprise that vitamin A can also help relieve aqueous-deficient and evaporative dry eye symptoms.