1 Clean your brush and use clean water or a second color to paint inside the outline, being sure to blend with the outer color. 2  Leave the middle white. 3  For a dark center, paint it in once the flower has dried.  For a light center, paint it while the flower is still wet to blend.
The main function of vitamin A is to support vision, especially in dim lighting, by creating pigments that are needed to help keep the retina of the eye healthy. It also helps produce the protein rhodopsin, which absorbs light in the retina. In addition, vitamin A helps support the growth and development of the cornea and other membranes of the eye.
Vitamin A has many roles in health: normal vision, bone and tooth formation, cell function, and immunity. The carotenoids act as antioxidants. Vitamin A works in the lining of your lungs to help fight infection. It also helps to keep your intestines healthy. Not getting enough vitamin A can lead to night blindness. This means your eyes do not adjust when going from a lighted area to a dark area, such as when entering a dark movie theater.