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Eye and Ear Disorder
disorders
| Term | Definition |
|---|---|
| diplopia | double vision |
| exteroceptor | sensory receptors located close to the body's surface and are sometimes referred to as cutaneous receptors |
| ototoxic | a substance causing damage to the inner ear or auditory nerve |
| photophobia | increased sensitivity of the eyes to light |
| proprioceptors | receptors that provide information about body movement, orientation and muscle stretch |
| ptosis | drooping eyelid |
| refraction | the act or process of refracting; specifically, the determination of the refractive errors of the eye and their correction with glasses |
| tinnitus | hearing ringing, buzzing, or other sounds without an external cause. |
| trachoma | contagious, chronic inflammation of the mucous membranes of the eyes, resulting in bumps that scratch the cornea caused by Chlamydia trachomatis. |
| visceroceptors | receptors that are located internally and provide information about the environment around the organs |
| visual acuity | clearness of the visual perception of an image |
| Conjunctivitis | Superficial inflammation or infection involving the conjunctiva lining the eyelids and covering the sclera |
| Trachoma | Eye infection caused by chlamydia thachomitis |
| Keratitis | Inflammation of the cornea usually accompanied by severe pain |
| Glaucoma | Condition resulting from increased intraocular pressure caused by excessive accumulation of aqueous humor. |
| narrow angle or acute | Angle between the Iris and the anterior chamber is narrow. |
| Chronic wide or open angle glaucoma | Caused by an obsuction of the trabecular network orthe canal of schlemm |
| Cataracts | Clouding of the lens that interferes with light transmission |
| Detached retina | When the retina tears away from the choroid due to marked myopia, degeneration, aging, generation of scar tissue that creates tension on the midterm |
| Macular degeneration | Degeneration at the fovea centralis in the macula lutea |
| Dry macular degeneration | Deposits form the the retinal cells |
| Wet macular degeneration | Neovascularization in the retina |
| Otitis media | Inflammation or infection of the middle ear cavity |
| Otitis externia | Inflammation of the external auditory canal and pinna |
| Otosclerosis | Fixation of the states to the oval window blocking conduction of sound to the cochlea |
| Minierre syndrome | Inner ear or labyrinth disorder where excessive endolymph develops in one ear |
| conjunctivitis | caused by allergens, bacterial, viral or irritating chemical exposure to the covering lining the sclera and ey lids |
| trachoma | caused by infection of chlamydia thrachomitis. follicles develop in the inner eyelid that scratch the cornea |
| keratitiis | injury to the cornea or infection to the cornea such as from herpes |
| narrow angle glaucoma | caused by a developmental abnormality |
| open angle glaucoma | caused by obstruction of the trabecular network due to age or diabetes |
| cataracts | caused by degenerative changes with aging, maternal infection , trauma or metabolic abnormalities such as diabetes |
| macular degeneration | caused by a combination of genetic factors and environmental exposure |
| otitis media | caused by allergies or infections spreading from the nasopharynx to the middle ear |
| otitis externia | caused by bacteria or fungus and associated with swimming or use of ear phones or ear plugs |
| otosclerosis | caused by imbalance of bone formation and resorption, genetic factors |
| minierre syndrome | caused by excess production of endolymph in the ear |
| conjunctivitis | symptoms include redness and itching of the conjunctiva with excessive tearing and watery discharge |
| trachoma | symptoms include the development of follicles on the inner surface of the eyelid, scarring and abrasion of the cornea resulting in blindness |
| keratitis | symptoms include severe corneal pain and photophobia |
| chronic (open) glaucoma | symptoms include insidious loss of peripheral vision and halos around lights |
| acute (narrow angle) glaucoma | symptoms include severe eye pain, nausea, headache and loss of vision |
| cataracts | symptoms include cloudiness of the lens with blurred vision |
| detached retina | symptoms include painless loss of visual field described as floating spots or "a dark curtain" across the visual field |
| macular degeneration | central vision with high acuity becomes blurred and then is lost |
| otitis media | symptoms include earache (otolgia), pressure, mild hearing loss and ear congestion |
| otitis externia | symptoms include pain, purulent discharge and hearing deficit, Pain increases with movement of the pinna |
| meniere syndrome | symptoms include severe vertigo, tinnitis, unilateral hearing loss, nausea, nystagmus and a feeling of pressure in the ear |
Created by:
boringjen