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 is essential to the proper functioning of the retina. It also helps prevent night blindness by helping the eye to adapt to changes in lighting. Vitamin A also helps reduce the risk of age-related macular degeneration (AMD) and it inhibits the formation of cataracts. AMD and cataracts are the leading causes of visual impairment, so getting enough Vitamin A is essential to the health of your eyes.