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| appendages or accessory structures of an organ |
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| the normal relationship between the refractive power of the eye and the shape of the eye that enables light rays to focus correctly on the retina |
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| holds a Doctor of Optometry degree and specializes in measuring the accuracy of vision to determine whether corrective lenses are needed |
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| aka ptosis; drooping of the upper eyelid that is usually due to paralysis |
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| aka internal stye; a localized swelling inside the eyelid resulting from obstruction a sebaceous gland |
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| the eversion of the edge of an eyelid |
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| the inversion of the edge of an eyelid |
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| aka stye; a pus-filled lesion on the eyelid resulting from an infection in a sebaceous gland |
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| swelling surrounding the eye or eyes |
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| aka pinkeye; an inflammation of the conjunctiva that is usually caused by an infection or allergy |
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| an inflammation of the lacrimal gland that can be caused by a bacterial, viral, or fungal infection |
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| aka dry eye; drying of eye surfaces including the conjunctiva |
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| aka anterior uveitis; an inflammation of the uveal tract affecting primarily structures in the front of the eye |
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| an inflammation of the cornea |
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| a benign growth on the cornea that can become large enough to distort vision |
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| an inflammation of the sclera |
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| a condition in which the pupils are unequal in size |
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| the loss of transparency of the lens that causes a progressive loss of visual clarity |
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| an involuntary, constant, rhythmic movement of the eyeball that can be congenital or caused by a neurological injury or drug use |
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| aka choked disk; swelling and inflammation of the optic nerve at the point of entrance into the eye through the optic disk |
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| a group of diseases characterized by increased intraocular pressure that cause damage to the retinal nerve fibers and the optic nerve |
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| aka double vision; the perception of two images of a single object |
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| blindness in one-half of the visual field |
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| aka night blindness; a condition in which an individual with normal daytime vision has difficulty seeing at night |
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| the condition of common changes in the eyes that occur with aging |
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| a disorder in which the eyes point in different directions or are not aligned correctly because the eye muscles are unable to focus together |
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| aka cross-eyes; strabismus characterized by an inward deviation of one or both eyes |
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| aka walleye; strabismus characterized by the outward deviation of one eye relative to the other |
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| any error of refraction in which images do not focus properly on the retina |
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| a condition on which the eye does not focus properly because of uneven curvatures of the cornea |
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| aka farsightedness; a defect in which light rays focus beyond the retina |
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| aka nearsightedness; a defect in which light rays focus in front of the retina |
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| a dimness of vision or the partial loss of sight, especially in one eye, without detectable disease of the eye |
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| aka funduscopy; the visual examination of the fundus (back part) of the eye with an ophthalmoscope |
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| the measurement of intraocular pressure |
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| a radiographic study of the blood vessels in the retina of the eye following the intravenous injection of a fluorescein dye as a contrast medium |
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| the partial, or complete, suturing together of the upper and lower eyelids |
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| the surgical removal of a portion of the tissue of the iris |
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| a surgical procedure to treat myopia |
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| the removal of the vitreous fluid and its replacement with a clear solution |
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| used to treat open-angle glaucoma by creating openings in the trabecular meshwork to allow fluid to drain properly |
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| used to reattach the detached area in a retinal detachment |
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| aka swimmer's ear; a fungal infection of the external auditory canal |
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| the flow of pus from the ear |
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| pressure-related ear discomfort that can be caused by pressure changes when flying, driving in the mountains, scuba diving, or when the eustachain tube is blocked |
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| aka salpingitis; inflammation of the eustachian tube |
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| a contagious inflammation that causes painful blisters on the eardrum |
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| the ankylosis of the bones of the middle ear, resulting in a conductive hearing loss |
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| an inflammation of the middle ear |
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| a sense of whirling dizziness, and the loss of balance, that is often combined with nausea and vomiting |
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| a ringing, buzzing, or roaring sound in one or both ears. It is often associated with hearing loss |
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| a gradual loss of sensorineural hearing that occurs as the body ages |
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| the use of air pressure in the ear canal to test for disorders of the middle ear |
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| the surgical removal of mastoid cells |
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| the surgical incision in the eardrum to create an opening for the placement of tympanostomy tubes |
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| aka pediatric ear tubes; tiny ventilating tubes placed through the eardrum to provide ongoing drainage for fluids and to relieve pressure that can build up after childhood ear infections |
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| the surgical removal of the top portion of the stapes bone and the insertion of a small prosthetic device known as a piston that conducts sound vibrations to the inner ear |
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| the surgical removal of all or a portion of the labyrinth |
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| an implanted electronic device that can give a deaf person a useful auditory understanding of the environment and/or hearing and help them to understand speech |
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