Yes, it is useful and important for reducing eye floaters and keeping eye health. Lutein is also known as xanthophylls, which are actually beta carotene related carotenoids. It presents through the body, particularly in the eyes, which is found in the lens of the eye and in the retina, especially in the macula. Eye floaters are small spots that appear in your field of vision. Lutein is a powerful antioxidant, and with zeaxanthin together can cure eye floaters. On the other side, Lutein is considered as an antioxidant that protects the cells against the damage caused by naturally sunlight. lutein is important for prevent some eye disorders, for example, it could prevent cataracts that is commonly occurs with age. It can be found in green leafy vegetables and yellow and orange fruits as well as egg yolks and animal fats, such as spinach, lettuce