which is the main purpose of a vision statement
Mission statement It is important that a mission statement is not confused with a vision statement. As discussed earlier, the main purpose of a mission statement is to get across the ambitions of an organisation in a short and simple fashion, it is not necessary to go into detail for the mission statement which is evident in examples given. The reason why it is important that a mission statement and vision statement are not confused is because they both serve different purposes. Vision statements tend to be more related to strategic planning and lean more towards discussing where a company aims to be in the future.
Lens (anatomy) The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina. The lens, by changing shape, functions to change the focal distance of the eye so that it can focus on objects at various distances, thus allowing a sharp real image of the object of interest to be formed on the retina. This adjustment of the lens is known as accommodation (see also below). Accommodation is similar to the focusing of a photographic camera via movement of its lenses. The lens is more flat on its anterior side than on its posterior side.