There are many different types of lenses for various lifestyle activities. That depends on whether your eyes change or not. Call your eye doctor ... guards): Used, for example, in baseball and ...

Double lenses allow two people to transform into puppies, for example. In November, the company launched world lenses, which allow users to add affects to their surroundings -- like clouds that ...

How can we capture ultrafast optical signals in real time? A time lens is one possibility — able to image the temporal profile of a short optical signal, analogous to a conventional lens.