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50 Cards in this Set
- Front
- Back
Presbycusis
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hearing loss from gradual deterioration of sensory receptors. Associated with aging. |
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Canthus |
--angle where upper and lower eyelids meet |
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OD
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OS
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Left Eye - aka Occulus Sinister |
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OU |
Both Eyes - aka Occulus Uterque |
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AD |
Right Ear - Aka Auris Dexter |
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AS
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Left Ear - Aka Auris Sinister |
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AU |
Both Ears - aka Auris Unitas |
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Optic |
Pertaining to eye or sight |
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Ocular |
Pertaining to the eye |
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Extraocular |
Outside the eyeball |
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Intraocular |
Inside the eyeball |
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Layers of the Eyeball |
--Choroid --Retina |
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Sclera
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Choroid
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Opaque middle layer of eye that contains blood vessels and provides blood supply for the eye |
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Retina |
Sensitive most innermost layer that receives nerve impulses and transmits them to the optic nerve. |
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Structures of the Retina
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--Rods (BW) and Cones (color) --Macula --Fovea Centralis - highest concentration of rods/cones |
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Rods and Cones |
--Rods - react to dim light and used in night vision --Cones - sensitive to bright light and used to see color |
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Pigmented layer of the eye contains |
--Cornea, Pupil and Lens |
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Cornea |
Transparent outer surface of eye covering the Iris and pupil focusing light rays entering the eye
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Pupil |
Black circular opening in center of iris that permits light to enter the eye |
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Lens |
Clear, Flexible curved structure that focuses images on the retina |
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Iritis
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Inflammation of the uvea affecting primarily structures in front of the eye and can last 6-8 weeks |
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Keratitis |
Inflammation of the cornea |
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Cataracts
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Cloudy lens |
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Floaters |
White floating lights in peripheral vision - debris inside the eye
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Glaucoma |
--Chronic Glaucoma --Acute Glaucoma |
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Refractive Disorders Types |
-Hyperopia -Myopia -Presbyopia (old age) |
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Hyperopia
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Light rays focus BEYOND the retina resulting in FARSIGHTEDNESS |
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Myopia
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Light rays focus in FRONT of the retina resulting in NEARSIGHTEDNESS |
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Presbyopia
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old age sightedness |
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PERRLA |
Acronym meaning PUPILS are EQUAL, ROUND, RESPONSIVE to LIGHT and ACCOMODATION |
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Iridectomy
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Surgical removal of a portion of the tissue of the iris |
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Lensectomy |
Surgical removal of cataract-clouded lens |
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Corrective Lens Types |
-Convex lenses-curve outward for hyperopia -Bifocals- lenses with 2 powers -Trifocals- lenses with 3 powers -Contact Lenses-refractive lenses that float directly on the tear film in front of the eye |
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Middle Ear Structures
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-Tympanic Membrane (eardrum) -Mastoid Process -Auditory Ossicles: Malleus(hammer), Incus (anvil), Stapes (Stirrup) -Eustachian Tubes |
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Tympanic Membrane |
Eardrum |
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Auditory Ossicles |
-Malleus (hammer) -Incus (Anvil) -Stapes (Stirrup) |
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Otitis |
**Ear infection**
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Tinnitus |
Condition of ringing, buzzing or roaring sound in one or both ears |
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Conjunctiva
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Transparent mucous membrane that lines the underside of eyelid and continues over eyeball |
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Lacrimal Apparatus
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Structure that produce, store and remove tears |
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Macular Degeneration |
**Leading cause of blindness in ages 55+ --Macula at center of retina is damaged, resulting in loss of CENTRAL vision, but not in total blindness. |
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Olfactory
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Smelling |
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Gustatory
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Tasting |
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MA should be sensitive to cultural considerations and needs of patient
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--Provide patients with instructions they will understand. --Encourage patients to repeat any instruction to ensure they fully understand |
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Otosclerosis
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Hereditary condition with abnormal tissue growth around stapes causing gradual hearing loss
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Sense of touch
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Originates from the DERMIS, the deepest layer of skin. |
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Astigmatism
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Irregularity in curvature of the cornea and lens. Football shaped. |
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Where is the highest concentration of Rods and cones?
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Fovea Centralis |