This clip is a look at the human eye and how it works. We illustrate the functions of the eye with models, film clips and magnified images. The eye is a ball with a hole at the front, the pupil ...

The intricacy and seeming perfection of the eye, both as an object of anatomical beauty and as a working machine, have worried and intrigued scientists, philosophers and zealots, especially during ...

5. Human eyes are actually extremely sensitive to light - they can detect a single photon (particle of light) in a dark room, according to new research published in Nature Communications. 6. The 'red ...