To begin, the alfalfa plant is just that, a plant. When something is naturally derived and an evolved product of the Earth, the benefits that arise from using it are abundant. The alfalfa plant is naturally high in many essential vitamins, including A, D, E, K, and even the full family of B vitamins.
The fovea centralis (the term fovea comes from the Latin, meaning pit or pitfall) is a small, central pit composed of closely packed cones in the eye. It is located in the center of the macula lutea of the retina. The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for activities where visual detail is of primary importance, such as reading and driving.
The area of the retina responsible for more detailed vision is called the Macula. The optic nerve is responsible for carrying signals from the retina to the brain through the optic disc. The fovea at the center of the macula packed with millions of light sensitive cells is the most sensitive part of the retina.