MOBILE WORLD CONGRESS, BARCELONA, Feb. 24, 2014 â SanDisk Corporation (NASDAQ: SNDK), a global leader in flash storage solutions, today announced the new 128GB 2 SanDisk Ultra Â® microSDXCâ¢ UHS-I memory card, the worldâs largest capacity microSD card.
It is composed of three concentric layers (also called coats) with different structures and functions. The tough outermost layer of the eye is known as the fibrous layer and is composed of two fused but physically quite different structures: Sclera â white of the eye. Cornea â window of the eye.
Diagram of the eye, viewed from the side. National Eye Institute. To understand this diagram of the eye, try to picture it as being split in two, like an apple that's been cut in half. Imagine yourself looking into the eye from the cut side. The Cornea. The cornea is a transparent dome-shaped tissue that forms the front part of your eye. It functions as a window and allows light to enter your eye. It also begins the process of focusing light rays that allow you to see words and images clearly. The cornea provides 65-75% of your eye's focusing power. The cornea does not contain any blood vessels, but instead contains many nerve endings that make it extremely sensitive.