University of Washington are working on solar powered contact lenses with transparent LEDs embedded onto the lens. This technology could be applied in countless ways, from health monitoring to text translation right in front of the wearer's eyes.
Choosing the right lens is an important part of getting the results you want. The two most important things to consider are ‘Focal Length’, and ‘Depth of Field’. (and lower) have the widest focal lengths and are considered wide angle lenses.