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 ...

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 ...

They are far more sensitive to light than cone cells, which is why you can sometimes see stars out of the corner of your eye at night, but when you look straight at them they seem to disappear. 5.