Term
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Definition
| tough white outer coat of the eyeball |
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Term
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Definition
| membrane lining the eyelids and covering the eyeball |
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Term
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Definition
| transparent anterior part of the eye |
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Term
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Definition
| the middle, vascular coat of the eye, between the sclera and the retina |
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Term
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Definition
| pigmented membrane behind the cornea, perforated by the pupil |
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Term
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Definition
| opening in the center through which light enters the eye |
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Term
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Definition
| transparent body separating the posterior chamber and constituting the refracting mechanism of the eye |
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Term
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Definition
| eye muscle capable of changing lens shape during contraction and relaxation |
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Term
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Definition
| watery liquid in chamber in the front of the lens; it circulates through the anterior chamber of the eye |
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Term
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Definition
| jellylike transparent substance in the posterior chamber |
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Term
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Definition
| innermost layer of the eyeball, containing elements for reception and transmission of visual stimuli |
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Term
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Definition
| dimness of vision without a detectable organic lesion of the eye; related to absence, weakness, or paralysis of an eye muscle |
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Term
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Definition
| condition characterized by irregular cornea and lens of the eye; corrected with lenses |
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Term
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Definition
| inflammation of the eyelids |
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Term
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Definition
| opaque (not clear) lens of the eye |
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Term
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Definition
| a small eyelid mass resulting from chronic inflammation of a meibomian gland |
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Term
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Definition
| popular term for any deviation from normal perception of color |
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Term
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Definition
| inflammation of the conjunctiva |
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Term
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Definition
| a local inflammation of the cornea caused by injury or inflammation |
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Term
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Definition
| inflammation of a lacrimal gland |
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Term
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Definition
| inflammation of a lacrimal gland |
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Term
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Definition
| a lacrimal calculus (stone) |
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Term
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Definition
| separation of the inner layers of the retina from the pigment epithelium |
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Term
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Definition
| scarring of the capillaries of the retina as a consequence of DM of long duration. Retinal effects of DM include abnormal dilation of the retinal veins, hemorrhage, microaneurysms, and neovascularization (new blood vessels forming near the optic disk causing leakage of blood). These effects cause a permanent decline in vision and will lead to blindness. |
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Term
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Definition
| "spots before the eyes"; these deposits in the vitreous of the eye usually move about and are probably a benign degenerative change. Also seen in hypertension |
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Term
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Definition
| any object not belonging to the eye; hazards depending on circumstances |
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Term
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Definition
| eye disease characterized by an increase in intraocular pressure related to alterations in circulation of vitreous humor, causing pathologic changes and visual defects |
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Term
| Hemorrhage (Subconjunctival) |
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Definition
| blood escaping from the vessels, and bleeding from beneath the conjunctiva |
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Term
| Herpes Zoster (Ophthalmic) |
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Definition
| involving the fifth cranial nerve (forehead, eyelid, and cornea), this infection by a herpes virus can be serious |
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Term
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Definition
| farsightedness, e.g., the person cannot read a book |
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Term
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Definition
| eye injuries include foreign bodies, contusions, lacerations, burns, etc. |
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Term
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Definition
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Term
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Definition
| conical protrusion of the central part of the cornea |
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Term
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Definition
| deterioration of the macula of the eye, resulting in a severe loss of central vision in the affected eye |
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Term
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Definition
| a small localized swelling of the eyelid resulting from obstruction and retained secretions of the meibomian glands. A nonmalignant condition; often requires surgery for correction |
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Term
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Definition
| involuntary rapid movement (horizontal, vertical, rotary, or mixed, i.e., of two types) of the eyeball |
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Term
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Definition
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Term
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Definition
| diminution of accommodation of the lens of the eye caused by loss of elasticity, normally occurring with aging; farsightedness |
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Term
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Definition
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Term
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Definition
| inflammation of the retina |
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Term
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Definition
| a tumor arising from the retinal cells |
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Term
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Definition
| any disease of the retina |
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Term
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Definition
| squint; deviation of the eye from normal; crossed eyes; usually correctable |
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Term
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Definition
| inflammation of the sebaceous glands of the eyelid |
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Term
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Definition
| a contagious disease of the conjunctiva and cornea, producing photophobia, pain, and lacrimation; uncommon |
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Term
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Definition
| inflammation of the uvea (iris and blood vessels) |
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Term
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Definition
| a surgical excision of the lens of the eye. Special lenses or glasses are prescribed |
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Term
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Definition
| application of extremely low temperature for the removal of a cataractous lens |
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Term
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Definition
| incision of the lacrimal sac and duct |
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Term
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Definition
| surgical removal of the eye |
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Term
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Definition
| examination and study of the fundus of the eye by means of an ophthalmoscope |
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Term
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Definition
| instrument for demonstrating ocular motility and rotation |
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Term
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Definition
| excision of part of the iris |
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Term
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Definition
| excision of part of the iris in glaucoma |
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Term
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Definition
| plastic surgery of the cornea; corneal grafting |
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Term
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Definition
| using the laser beam to treat retinal detachment |
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Term
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Definition
| growth of the conjunctiva: neovascularization that invades the cornea; it can be removed surgically |
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Term
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Definition
| an instrument used in ophthalmology for examining the conjunctiva, lens, vitreous humor, iris, and cornea. A high-intensity beam of light is projected throug ha narrow slit and cross-section of the illuminated part of the eye is examined through a magnifying lens |
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Term
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Definition
| instrument for measuring tension or pressure, especially intraocular pressure |
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Term
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Definition
| excision of fibrous bands or connective tissue |
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Term
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Definition
| aspiration of vitreous fluid and replacement with saline solution |
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Term
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Definition
| adjustment of the eye for seeing objects at various distances |
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Term
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Definition
| inequality in size of the pupils of the eyes |
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Term
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Definition
| a system of printing for the blind consisting of raised dots and prints that can be read by touch |
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Term
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Definition
| opening through which aqueous humor must flow out or pressure in the eye increases resulting in glaucoma |
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Term
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Definition
| the angle at either end of the fissure between the eyelids |
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Term
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Definition
| with correction (glasses or lenses) |
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Term
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Definition
| an instrument for applying extreme cold to tissue |
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Term
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Definition
| an instrument for opening the lens capsule |
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Term
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Definition
| unit of measure for lenses |
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Term
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Definition
| recordings of eye movements to provide objective documentation of induced and spontaneous nystagmus |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| the back portion of the interior of the eyeball, visible through the pupil by use of the ophthalmoscope |
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Term
| Funduscope (Or Ophthalmoscope) |
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Definition
| an instrument containing a perforated mirror and lenses used to examine the interior of the eye |
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Term
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Definition
| secretion and discharge of tears |
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Term
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Definition
| a device that transfers light of various frequencies into an extremely intense, small beam of radiation. It is used as a tool in surgery, in diagnosis, and in physiologic studies |
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Term
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Definition
| device for obtaining eyeglass prescriptions |
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Term
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Definition
| a drug that causes contraction of the pupil |
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Term
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Definition
| a drug that dilates the pupil |
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Term
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Definition
| abbreviation for oculus dexter (right eye) |
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Term
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Definition
| instrument containing a perforated mirror and lenses, used to examine the interior of the eye; also called funduscope |
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Term
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Definition
| abbreviation for oculus sinister (left eye) |
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Term
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Definition
| abbreviation for oculus uterque (each eye) or oculus unitas (both eyes) |
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Term
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Definition
| vision at the outer edges when the eyes are looking straight ahead |
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Term
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Definition
| acronym for Pupils Equal, Round, React to Light, Accommodation |
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Term
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Definition
| the determination of the refractive errors of the eye and their correction with glasses or lenses |
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Term
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Definition
| without correction (glasses or lenses) |
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Term
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Definition
| one of several charts used in testing visual acuity. Letters, numbers, or symbols are arranged on the chart in decreasing size from top to bottom |
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Term
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Definition
| clarity or clearness of vision |
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Term
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Definition
| a person who can read what the average person can read at 20 feet |
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Term
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Definition
| auricle (or pinna) or ear canal |
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Term
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Definition
| separated from the external ear by the tympanic membrane; consists of three bones: malleus, incus, and stapes |
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Term
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Definition
| the complex inner structure of the ear: vestibule, semicircular canals, and cochlea, composing the membranous labyrinth |
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Term
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Definition
| the thin partition between the external acoustic meatus and the middle ear |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| a tube, lined with mucous membrane, the joins the nasopharynx and the tympanic cavity; accomplishes equalization of air pressure |
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Term
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Definition
| a benign tumor arising from the acoustic nerve in the brain. This tumor causes tinnitus, vertigo, and decreased hearing. Small tumors may be surgically resected or removed by radiation therapy |
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Term
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Definition
| a collection of skin cells and cholesterol in a sac with the middle ear. These cystlike masses are most often the result of chronic otitis media, but may also be congenital defect. |
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Term
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Definition
| hearing loss that occurs when the conduction of sound waves through the external and middle ear to the inner ear is impaired |
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Term
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Definition
| lacking the sense of hearing; hearing impairment |
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Term
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Definition
| inflammation of the eustachian tubes |
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Term
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Definition
| a skin infection affecting the ear canal |
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Term
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Definition
| cerumen (earwax) impacted firmly into the ear |
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Term
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Definition
| inflammation of the labyrinth (inner ear); otitis interna |
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Term
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Definition
| inflammation of the mastoid antrum and cells (of the temporal bone) |
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Term
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Definition
| deafness, tinnitus, and dizziness; causes unknown |
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Term
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Definition
| inflammation of the tympanic membrane (eardrum) |
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Term
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Definition
| inflammation of the external ear |
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Term
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Definition
| inflammation of the middle ear |
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Term
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Definition
| ankylosis of the stapes, resulting in conductive hearing loss |
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Term
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Definition
| progressive hearing loss in some elderly persons |
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Term
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Definition
| also called nerve deafness, this type of hearing loss results from physical damage to the hair cells, the vestibulocochlear nerve, or the auditory cortex. This condition may occur because of aging. Explosions, extremely loud noises, such as from machinery or loud music, and some antibiotics can damage the hair cells in the organ of Corti, creating partial to complete deafness. Other causes include brain tumors, strokes, infections, trauma, vascular disorders, and degenerative diseases |
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Term
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Definition
| the surgical creation of a new opening in the labyrinth of the ear for restoration of hearing in otosclerosis |
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Term
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Definition
| excision of the mastoid cells or the mastoid process |
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Term
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Definition
| incision of the tympanic membrane; tympanotomy with placement of tubes to maintain drainage |
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Term
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Definition
| plastic surgery of the ear (pinna) |
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Term
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Definition
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Term
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Definition
| plastic surgery on the eardrum |
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Term
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Definition
| myringotomy; incision of the tympanic membrane |
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Term
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Definition
| opening or passage in the ear |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| aures unitas (both ears) or auris uterque (each ear) |
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Term
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Definition
| a device for testing the hearing |
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Term
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Definition
| person who performs hearing tests |
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Term
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Definition
| pertaining to the ear; sense of hearing |
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Term
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Definition
| a unit of measure of the intensity of sound |
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Term
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Definition
| a device used to increase the intensity of sound |
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Term
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Definition
| dogs trained to respond to sounds and alert the hearing-impaired person |
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Term
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Definition
| an instrument used for inspecting the ear |
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Term
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Definition
| examination of the ear by means of the otoscope |
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Term
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Definition
| communication by means of manual signs and gestures |
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Term
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Definition
| a noise (ringing) in the ears |
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Term
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Definition
| a small metal instrument consisting of a stem and two prongs used to test hearing |
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Term
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Definition
| a sensation of rotation or dizziness |
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