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 Eye of Tandyla Tartessian Empire with the island continent of Pusad and the actual Atlantis, a barbaric mountainous region that is today the Atlas mountain range. The Eye of Tandyla "The Eye of Tandyla" is a fantasy story by American writer L. Sprague de Camp, part of his Pusadian series. It was first published in the magazine "Fantastic Adventures" for May, 1951, and first appeared in book form in de Camp's collection "The Tritonian Ring and Other Pusadian Tales" (Twayne, 1953). The story has also appeared in the magazine "Fantastic" for November 1965, the anthologies "Time Untamed" (1967), "The Magic of Atlantis" (1970),