If evolution occurs through gradations, the critics say, how could it have created the separate parts of the eye -- the lens, the retina, the pupil, and so forth -- since none of these structures ...

Media file 1: Parts of the eye. Media file 2: Elevated eye pressure is caused by a build-up of fluid inside the eye because the drainage channels (trabecular meshwork) cannot drain it properly.

In this video, learn about different parts of the human eye and how our sight works. Follow me please class. We’re here at the optician’s to get a good look at a human eye and find out how it ...