Thanks very much for sharing this information regarding people of African descent...majority of my childhood and young adult life I had cinnamon colored eyes...darker than hazel but noticeable from regular brown eyes...the past several years my eyes have the typical dark brown appearance. It never dawned on me why this happened...you have clarified this reality for me. Your time and advice is appreciated. By the way, it is most likely the Vitamin C which lightened your eyes...I have been researching making my own Vitamin C from L-ascorbic acid and baking soda. This type of Vitamin C is alkaline and good for other health benefits. Thanks again for all your knowledge.