This vitamin and mineral supplement formula is a safe and effective ocular dietary supplement. It is the only major ocular antioxidant supplement that has a delayed release formula which allows the ingredients to dissolve gradually, thereby contributing to greater absorption by the body. This specialized, comprehensive formula of carotenoids, antioxidants are 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. Studies suggest a relationship between these two carotenoids and the maintenance of a normal healthy macula and clarity of the lens of the eye.* Zinc is an important mineral found in high concentrations in healthy eyes. Zinc acetate has been proven to be the form of zinc with greatest absorption by the body.** Lactose free. Easy to swallow tablet. *Bone RA, Landrum JT, Tarsis SL. Vision Res 25:1531-1535 (1985). **Prasad SP, Beck FWJ, Nowak J. Comparison of Absorption of Five Zinc Preparations in Humans Using Oral Zinc Tolerance Test. The Journal of Trace Elements in Experimental Medicine 1993; 6:109-115.