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.
1 The iris of the eye functions like the diaphragm of a camera, controlling the amount of light reaching the back of the eye by automatically adjusting the size of the pupil (aperture).  The eye's crystalline lens is located directly behind the pupil and further focuses light. Through a process called accommodation, this lens helps the eye automatically focus on near and approaching objects, like an autofocus camera lens.