Seeing, of course, is done by the eye. But our brain plays a very important part in the process we call seeing. Mechanically, this is what happens. Light waves pass through the pupil of the eye and form an image on the retina. The retina is a carpet like screen of cells at the back … Read more

Seeing, of course, is done by the eye. But our brain plays a very important part in the process we call seeing. Mechanically, this is what happens. Light waves pass through the pupil of the eye and form an image on the retina. The retina is a carpet like screen of cells at the back … Read more