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GCN N170 Eyes & Ears
N170 Eyes & Ears Sensory Alteration Study Aid
| Question | Answer |
|---|---|
| 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
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