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Eye and Ear
Haneygenpathc14-19
| Question | Answer |
|---|---|
| Defects in visual acuity due to inability of the eye to effectively focus light on the surface of the retina | Refractive errors |
| Farsightedness; globe of eye is abnormally short in length from front to back. | Hyperopia |
| Loss of elasticity in the crystalline lens of the eye | Presbyopia |
| Nearsightedness; Globe of eye is abnormally long from front to back | Myopia |
| Variations of curvature over certain portions of the lens or the cornea of the eye. | Astigmatism |
| This disease causes squinting, headaches, and and frequent rubbing of eyes | Refractive errors |
| Repetitive involuntary movement of the eye | Nystagmus |
| Results from disease that produces lesions in portions of the brain and ears that control eye movement. | Nystagmus |
| This disease may be a cause of nystagmus | Meniere's disease |
| hordeolum; localized purulent inflammatory infection of one or more sebaceous glands of the eyelid | Stye |
| A stye usually results from this | Staphylococcus infection |
| A scratch on the transparent anterior cellular layer of the eye | Corneal abrasion |
| Corneal abrasions can be caused by | Dirt, dust, metal, or scratched contacts. |
| Pain, redness, and tearing of the eye indicate | Corneal abrasion |
| Gradual chemical change causing opacity or clouding of the crystalline lens in the eye | Cataracts |
| The four types of cataracts are: | Senile, Traumatic, secondary, Congenital. |
| Gradual loss of vision and seeing halos around lights are common symptoms of | Cataracts |
| Glaucoma | accumulating fluid pressure within the eye damages the retina and optic nerve. |
| in glaucoma, more _____ ______ is produced. | aqueous humor |
| Most common glaucoma | open- angle |
| Glaucoma affects _ percent of the population over __. | 2, 40 |
| Loss of peripheral vision, mild eye ache, possible blindness indicate | glaucoma |
| Complete or partial separation of the retina from the choroid layer of the eye | Retinal detachment |
| ______ ______ leaks and accumulates between the two layers of the eye. | vitreous humor |
| Retinal detachment can be caused by; | Head trauma, hemorrhages, tumors, and diabetes mellitus. |
| Floating spots and flashes of light in the field of vision indicate | Retinal detachment |
| Slow progressive disease that produces change in the pigmented cells of the retina and macula causing drusen is | Macular degeneration |
| The leading cause of new blindness in the US is | Macular degeneration |
| Predisposing factors of macular degeneration include; | age over 60, farsightedness, light colored eyes, and smoking. |
| Inflammation of the structure that lines the inner surface of the eyeball, causing itching, burning, pain, and tearing. | Conjunctivitis |
| Possible causes of pinkeye include; | heat, cold, chemicals, UV rays, and infection. |
| Inflammation of the uveal tract | Uveitis |
| Inflammation of the cornea | Keratitis |
| Caused by herpes type 1, syphilis, and tuberculosis. | Keratitis |
| Disorder where the eyes can't focus on the same object | Strabismus |
| Causes of Strabismus include; | Lazy eye, amblyopia, CNS disturbances. |
| Crosseye, walleye | Esotropia, Exotropia |
| Accumulation of cerumen in the ear canal | impacted cerumen |
| Causes of impacted cerumen are | dry skin, narrow canals, exessive hair in ear |
| Gradual loss of hearing, tinnitus | Impacted cerumen |
| Inflammation of external ear canal | external otitis |
| Bacteria, fungus, or trauma to the ear cause | external otitis |
| Symptoms of Ext. otitis include | Severe pain, pruritus, swelling, fever. |
| Accumulation of fluid in the middle ear | Otitis media |
| Serous Otitis Med. causes include | Change in atmospheric pressure, allergies. |
| Suppurative Otitis med. causes are | Strep, staph, and pneumococcus bacteria. |
| S&S of Otitis media are | pressure in the ear, impaired hearing, chills, nausea. |
| Formation of spongy bone, especially over the oval window | Otosclerosis |
| The etiology of otosclerosis is | ideopathic |
| Otosclerosis symptoms include | Gradual loss of low tones, tinnitus |
| Nausea, vomiting, dizziness and vertigo are symptoms of | Motion sickness |
| The cause of motion sickness is | the disturbance of equilibrium in the ear. |
| Vertigo, progressive deafness, and tinnitus mark | Meniere's disease |
| Etiology of meniere's is | Ideopathic, but it destroys the hairs in the cochlea. |
Created by:
Barfield09
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