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.
Retina The retina is the innermost, light-sensitive layer, or "coat", of shell tissue of the eye of most vertebrates and some molluscs. The optics of the eye create a focused two-dimensional image of the visual world on the retina, which translates that image into electrical neural impulses to the brain to create visual perception, the retina serving much the same function as film or a CCD in a camera.