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29 Cards in this Set
- Front
- Back
acoustic neuroma
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a benign tumor that occurs where the acoustic nerve (CN VIII) enters the internal auditory canal or the temporal bone from the brain
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amblyopia
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reduced vision in an eye that is not corrected by refraction and does not have an obvious pathologic or structural cause
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aphakia
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the absence of the crystalline lens
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blepharitis
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a chronic bilateral inflammation of the lid margins
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cataract
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an opacity within the crystalline lens
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chalazion
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an inflammation of a sebaceous gland in the eyelids
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cholesteatoma
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an accumulation of keratinizing squamous epithelium in the middle ear
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conjunctivitis
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an infection or inflammation of the conjunctiva
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crystalline lens
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a biconvex, avascular, transparent structure enclosed in a capsule located behind the iris; ciliary body controls shape to bend light rays so that they fall onto the retina
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cycloplegic
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agent that causes ciliary body muscle paralysis and paralysis of accommodation
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enucleation
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removal of the eye
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external otitis
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inflammation or infection of the epithelium of the auricle and ear canal
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glaucoma
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a group of disorders characterized by (1) increased intraocular pressure and the consequences of elevated pressure, (2) optic nerve atrophy, and (3) peripheral visual field loss
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hordeolum
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an infection of the sebaceous glands in the lid margin
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intraocular lens (IOL)
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a small plastic lens that can be implanted either in the anterior or posterior chamber as a replacement for a lens removed for cataracts; provides very little optical distortion, especially compared with aphakic spectacles or even aphakic contact lenses
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Jaeger chart
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a chart used to test near visual acuity
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keratitis
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an inflammation or infection of the cornea that can be caused by a variety of microorganisms or by other factors
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keratoconus
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a non-inflammatory, usually bilateral disease of the cornea that is familial but has no exclusive inheritance pattern
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labyrinthitis
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an inflammation of the inner ear affecting the cochlear or vestibular portion of the labyrinth or both
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laser photocoagulation
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the use of an intense, precisely focused light beam, such as the argon laser, to create an inflammatory reaction
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Meniere's disease
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a disease characterized by symptoms caused by inner ear disease including episodic vertigo, tinnitus, fluctuating sensorineural hearing loss, and aural fullness
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miotic
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agent that causes pupillary constriction
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mydriatic
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agent that causes pupillary dilation
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otosclerosis
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the fixation of the footplate of the stapes in the oval window that results in decreased hearing acuity
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presbycusis
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hearing loss associated with aging
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refractive error
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defect of the refracting media of the eye that prevents light rays from converging into a single focus on the retina
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retinal detachment
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a separation of the sensory retina and the underlying pigment epithelium, with fluid accumulation between the two layers
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Snellen chart
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a chart used to test far visual acuity
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strabismus
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a condition in which the patient cannot consistently focus two eyes simultaneously on the same object
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