Vitamins are the essential constituents of the body and they are used for regulating various functions of the body. Vitamin D is a fat-soluble vitamin and they increase the effectiveness of night vision in the eye. Vitamin D is formed in the skin when the direct sunlight falls on the skin. Other than this, a person can get vitamin D from various food sources also.
By having a constant supply of vitamin D in the body, a person can have improved vision. It also avoids the reductions within the retinal inflammations and increases the level of beta accumulation within the eye. This feature develops the night vision capability in the eye.