The intricacy and seeming perfection of the eye ... anterior chamber, iris, ciliary body, lens, and four chapters on retina. Each chapter is a skilful blend of anatomy and up-to-date physiology.

Human eyes are actually spheres. The part that we can see is only just the front. That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye ...

So, at the outset, nocturnal eyes gather more light than human eyes do ... The retina is an extremely complex structure. It's made up of at least 10 distinguishable layers, and is packed with ...