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.
fovea centralis. The center of the macula is called the fovea centralis. It is about 1.5 mm in diamter and is area where all of the photoreceptors are cones; there are no rods in the fovea. The fovea is the point of sharpest, most acute visual acuity.The very center of the fovea is the foveola, with a diameter of only about .35 mm.hen only one type of cone receptor functions, the color deficiency is monochromatism. Very few people (about 3 in a million) have total color blindness or achromatopsia; they see things only in shades of white, gray and black.