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
Eye of the Stalker well as a video of Beth. When Stephen attempts to break into her home one night, Liz sets out to locate Beth after recognizing her from the video. They both join forces to catch Stephen in the act, using Beth as bait. Liz gives Beth a loaded gun, which the latter eventually uses when she sees Stephen holding Martha and threatening to slit her throat with a knife. Beth fires a warning shot to deter Stephen, and he is finally arrested. Eye of the Stalker Eye of the Stalker (a.k.a. Moment of Truth: Eye of the Stalker and Eye of