ICAPS® Eye Vitamin Lutein ; Zeaxanthin Coated Tablets. It promotes healthy Eyes™. It is a specialized, comprehensive formula of carotenoids, antioxidants, and minerals important to vision. Lutein and Zeaxanthin are natural carotenoids that have been shown through structural and clinical studies to be concentrated in the macular segment of the retina. These carotenoids are not produced by the human body, and their accumulation in the eye is dependent on dietary intake. Studies suggest a relationship between these two carotenoids and the maintenance of a normal healthy macula and clarity of the lens of the eye.