HLTH 354 Chapter Notes - Chapter 6: Visual Acuity, Vitrectomy, Hyperacusis
13 Aug 2018
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Eye: eye rests in a socket made of seven connecting bones in the skull, orbit: eye socket, blepharo: eyelids, conjunctiva: thin invisible membrane. Lacrimal gland: procures tears to keep the eye wet. Choroid: includes the lens, iris and ciliary muscles. Ciliary muscles: adjust the shape of the eye and lens to focus on near/far objects. Vitreous: liquid in the eye that bends light and aims it to the back of the eyeball. Pink eye: infection of the conjunctiva caused by a virus/bacteria. Ear: ears (auro, oto) turn sounds into electrical signals. Cochlea: cochle/o; from greek, for snail shell, the cochlea (koh-klee-ah), is a spiral, snail shell- shaped tube in the inner ear that contains hearing receptors. De nition: inability to see objects in motion ambiopia. De nition: decreased vision; referred to as lazy eye asthenopia. De nition: blindness in half of the visual eld hyperopia.
