Human eye of the size of the pupil, regulation and suppression of the hormone melatonin and entrainment of the body clock. The eye is not shaped like a perfect sphere, rather it is a fused two-piece unit, composed of the anterior segment and the posterior segment. The anterior segment is made up of the cornea, iris and lens. The cornea is transparent and more curved, and is linked to the larger posterior segment, composed of the vitreous, retina, choroid and the outer white shell called the sclera. The cornea is typically about 11.5 mm (0.3 in) in diameter, and 1/2 mm (500
The Golem's Eye political and morally complex version of "Harry Potter". The book takes its name from the cyclops-like eye of the golem, a magical artefact that, along with an animating parchment, activates the golem. Like the rest of the "Bartimaeus Trilogy", "The Golem's Eye" is set in somewhat modern-day London in an alternate history in which magic is commonplace and magicians are an accepted part of society; in fact, most magicians are in positions of power. They comprise the government, and commoners are treated as inferior. The main character is Nathaniel, a magician who works for the government in the Ministry of