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.
In fact, daily use of large-dose vitamin E supplements (400 IU) may increase the risk of prostate cancer. Eye disorders. Age-related macular degeneration (AMD) and cataracts are among the most common causes of significant vision loss in older people.