What is the effect of vitamin B1 deficiency? In what foods is it found?
Vitamin B1 or thiamine sources are: (1) Whole cereal (whole grain and flour) (2) Peas, beans and green vegetables (3) Dairy produce (4) Yeast and yeast extract. Deficiency effects on the eye (1) Retrobulbar neuritis (an affection of the optic nerve which affects transmission of vision and may lead to blindness). (2) Change in the clarity of the membranes of the eye thus decreasing vision. (3) Changes in the nerves of the eye. The treatment is dosage with vitamin B1. Since it is a water-soluble vitamin, it is not stored for long and deficiency states can easily occur. The maintenance dose is 1.0 mg per day. What are the sources of vitamin B2 or riboflavine? What affect does deficiency have on the eye? Deficiency leads to (a) New vessel formation on the clear cornea of the eye which may lead to a marked fall in vision. (b) Burning in the eye with misty vision, watering and sensitivity to light in the earlier stages. The treatment is to give vitamin B2. The maintenance dose is 1 mg per da
