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Chapter 5

The Eye

QuestionAnswer
Chamber of the eye that contains a water fluid called aqueous humor Anterior
Transparent, outer covering of the anterior portion of the eye Cornea
Chamber of the eye that contains a gelatinous fluid called vitreous humor Posterior
Pigmented vascular layer between the sclera and the retina. Choroid
Mucous membrane that lines the eyelids and outer eye surface. Conjunctiva
Nerve tissue in the inner posterior part of the eye Retina
Transparent structure posterior to the pupil that bends light rays on the retina to aid in focusing. Lens
Opening in the eye that allows light to enter Pupil
Visual receptors in the retina that respond to light waves for color vision Cones
Visual receptors in the retina that respond to light waves for dim vision Rods
Nerve that carries transmissions to the brain Optic
Watery liquid secreted by the ciliary processes that fills the anterior or posterior chambers of the Aqueous humor
Duct in the anterior chamber that carries filtered aqueous humor to the veins and bloodstream Canal of Schlemm
Tubes that carry tears to the lacrimal sac Lacrimal ducts
Central region of the retina; responsible of central vision Macula lutea
Jelly-like mass filling the inner chamber between the lens and retina that gives bulk to the eye Vitreous
Mesh like structure in the anterior chamber that filters the aqueous humor as it flows into the scleral venous sinus Trabecular meshwork
Double vision Diplopia
Eyestrain Asthenopia
Blind spot in vision Scotoma
Involuntary, rapid, oscillating movement of the eyeball Nystagmus
Abnormal protrusion of one or both eyeballs Exophthalmos
Distorted vision caused by an oblong or cylindrical curvature of the lens or cornea that prevents light rays from coming to a single focus on the retina Astigmatism
Farsightedness; difficulty seeing close objects when light rays are focused on a point behind the retina Hyperopia
Nearsightedness; difficulty seeing distant objects when light rays are focused on a point in front of the retina Myopia
Inflammation of the eyelid Blepharitis
Opaque clouding of the lens causing decreased vision Cataract
Chronic nodular inflammation of a tarsal gland, usually the result of a blocked duct Chalazion
An acute infection of a sebaceous gland of the eyelid; also called a sty Hordeolum
Abnormal overflow of tears caused by blockage of the lacrimal duct Epiphora
Right or left eye deviates inward towards the nose Esotropia
Right or left eye deviates outward, away from the nose Exotropia
Created by: brittniknight
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