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GCN N170 Eyes & Ears

N170 Eyes & Ears Sensory Alteration Study Aid

OU Both Eyes
OS Left Eye
Myopia Nearsightedness, a refractory error manifested by blurred distance vision
Ptosis Drooping eyelid
Hyperopia Farsightedness, a refractory error manifested by near vision blurriness
Nystagmus Involuntary oscillation of the eyeball
Macular Degeneration Central vision is affected due to drusen (small yellow spots beneath the retina) affecting central vision loss
Glaucoma Manifested by difficulty adjusting eyes in low light, loss of peripheral vision ,“halo’s” around lights, difficulty focusing, & headache
Medication management for Glaucoma Beta Blockers that decrease aquesous humor production. Timolol
Medication management for Glaucoma Beta Blockers that decrease aquesous humor production. Timolol
Pathophysiology of Glaucoma Increased IntraOcular Pressure
Medication management for Glaucoma Cholinergics (miotics) that cause constriction of pupil. Pilocarpine
Medication management for Glaucoma Cholinergics (miotics) that cause constriction of pupil. Pilocarpine
Medication management for Glaucoma Adrenergic Agonist that reduces production of aquesous humor and increases outflow. Epinephrine
Surgical management for Glaucoma Laser trabeuloplasty: laser burns applied to the tracecular meshwork to open tratrabecular spaces and promote outflow of aqueous humor, decreasing IOP
Surgical management for Glaucoma Trabeculectomy: Surgical removal of part of the trabecular meshwork, thus altering the filtering of aqueous humor via a newly created drainage fistula
Cataracts Lens opacity or cloudiness, blurry vision, decreased visual acuity
Post operative Cataract surgery care Avoid lying on side of the affected eye the night after surgery
Diplopia Double Vision: seeing one object as two
Astigmatism A refractory error caused by irregularity in the curve of the cornea
Strabismus Eye condition where there is deviation from perfect ocular alignment
OD Right eye
No moving or lifting objects greater than 15 lbs Post operative Cataract surgery care
Post operative Cataract surgery care Avoid bending or stooping for an extended period
IOL IntraOcular Lens implant placed after cataract surgery
Retinal Detachment Manifested by a shade or curtain coming across the vision, “bright flashing lights or “floaters”
Photoreceptor cells Rods & Cones located in the sensory layer of the Retina
Manifestations of Dry Age related Macular Degeneration (AMD) Gradual decrease in central vision, missing letters in words
Manifestations of Wet AMD Rapid visual changes in central vision, crooked lines and distortion
Conjunctivis Inflammation of conjunctive characterized by pink/reddened conjunctiva
Mydriasis Pupil dilation
Malleus Largest ossicle (bone) of the middle ear
Tympanic membrane Separates middle ear from the external auditory canal. Pearly gray in color
Stapes Most medial bone of the middle ear
Incus ‘Middle” bone of the middle ear, articulates with the malleus and stapes
Conductive hearing loss An external or middle ear disorder: caused by interrupting of the transmissionof sound via air. Ie. impacted cerumen, otitis media or otosclerosis
Otitis Media (AOM) Acute infection of the middle ear with noted redness and bulging of tympanic memebrane, pain to affected ear & fever
Otosclerosis Fixation of the stapes from abnormal bone growth. Bone conduction becomes greater than air conduction.
Sensorineural hearing loss Loss of hearing caused by damage to the cochlea or vestibulocochlear nerve (bone conduction)
Mixed Hearing Loss A dysfunction of air and bone conduction ( conductive & sensorineural loss)
Myringotomy or Tympanotomy Surgical incision into the tympanic membrane to relieve pressure and drain fluid from the middle ear
Tympanoplasty Surgical repair of the tympanic membrane from tympanic membrane perforation.
Vertigo Condition in which the individual senses themselves or their environment to be moving
Manifestations of Tinnitus Buzzing, roaring or hissing sound in one or both ears
Ototoxic medication Furosemide (Lasix) diuretic, Vancomycin, Gentamycin & Tobramycin (antibiotics), Aspirin
Ototoxicity Loss of hearing caused by medication
Created by: mmaze