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14 Cards in this Set
- Front
- Back
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conjunctiva
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clear mucous membrane of the eye. components are bulbar conjunctiva (covers anterior of eyeball) and palpebral conjunctiva (lines the eyelids)
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Cushings syndrome
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pituitary adenoma causes hypercortisolism. Signs are buffalo hump, moon face, central obesity, hirsutism, excess sweating, thinning skin=easy bruising, psychological disturbances.
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name the components of the external ear
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auricle, canal, tympanic membrane
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what are the components of the middle ear?
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ossicles- malleus, stapes, incus
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what is in the inner ear?
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cochlea (vestibular unit)
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what is cataracts?
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Clouding of the lens
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What is macular degeneration?
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Damage of the retina causes the macula (outer ring of fovea) to degenerate - leading cause of blindness in adults. Caused by undigested cellular debris, or subretinal hemorrhages of chorioid supplying blood to retina. Poor central vision in elderly
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What is glaucoma?
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Gradual vision loss from optic nerve damage, loss starts at periphery. Caused by increased IOP (narrow-angle glaucoma) can see change in size, color of optic cup.
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What is myopia? How is it adjusted in the otoscope?
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impaired far vision (near sightedness) caused by eyeball being too long, or cornea being too curved. (-) dopters
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What is hyperopia?
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Eyeball is too short, cornea is too flat images are focused behind the retina. "farsightedness" Can't see up close. (+) diopters
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What is presbyopia?
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Decreased strength in ciliary muscles or elasticity of lens to make the lens curve to focus on close objects. AGE!
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What are nystagmus?
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fine rhythmic oscillation of eye (on extreme lateral gaze normal)
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What is papilledema?
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swelling of optic disc and anterior bulging of physiologic cup (increased IOP, meningitis, CVA)
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what is PERRLA?
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"Pupils are equally round, reactive to light and accomodation"
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