Konya (Turkish pronunciation: [Ëkon.ja]; Greek: á¼°ÎºÏÎ½Î¹Î¿Î½ IkÃ³nion, Latin: Iconium) is a major city in the Central Anatolia Region of Turkey. It is the seventh-most-populous city in Turkey. As of 2016[update], Konya has a population of over 2.1 million.
Vitamin A is needed by the retina of the eye in the form of retinal, which combines with protein opsin to form rhodopsin, the light-absorbing molecule necessary for both low-light (scotopic vision) and color vision. Retinol, the form of vitamin A absorbed when eating animal food sources, is a yellow, fat-soluble substance. 2  Since the pure alcohol form is unstable, the vitamin is found in tissues in a form of retinyl ester. 3  It is also commercially produced and administered as esters such as retinyl acetate or palmitate.
Vitamins for the Eyes. Vitamins are classified as either fat-soluble or water-soluble. Fat-soluble vitamins are stored in the body and include A, D, E, and K, while the water-soluble vitamins, C and B, are flushed from your body and need to be replaced daily.Taking eye vitamins can help us to maintain the health of our eyes. Vitamin E: Like vitamin C, vitamin E is found in the lens of the eye. 2  It is also a major player in the bodyâs antioxidant defense system. 3  Because it is found in the eyeâs lens, it is believed to help prevent cataracts. 4  Vitamin E is also found in the retina, and is said to help prevent macular degeneration.