Eyes-And-Ears-Iii
Number of eyes-and-ears-iii flashcards: 73
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Start Flashcard Study Return to Medical Terminology homepage| Medical Term | Description |
| abducens nerve | A small cranial nerve which originates in the pons and sends motor fibers to the lateral rectus muscles of the eye. It provides horizontal eye movement control. |
| alacrima | Dry eye. |
| amaurosis | Partial or complete blindness caused by a disease. |
| anterior chamber | The space between the cornea and the iris, filled with aqueous humor. |
| aqueous humor | The clear, watery fluid circulating in the anterior and posterior chambers of the eye. |
| basilar membrane | A basement membrane in the cochlea that supports the hair cells of the organ of Corti. |
| biconcave | Concave on both sides, as in a lens design. |
| biconvex | Convex on both sides, particularly in a lens design. |
| blepharitis | Inflammation of the eyelids. |
| blepharospasm | Spasmodic winking caused by the involuntary contraction of an eyelid muscle. |
| cerumen | The yellow or brown waxy secretions produced by sweat glands in the external ear canal. Earwax. |
| choroid | The thin, highly vascular layer between the retina and sclera. |
| choroiditis | Inflammation of the choroid layer of the eye. |
| cochlea | The part of the inner ear (labyrinth) that is concerned with hearing. |
| cornea | The transparent, convex, anterior part of eye. It is the main refractory structure of the eye. |
| corneal edema | An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity. |
| dacryocystitis | Inflammation of the lacrimal sac. |
| dark adaptation | Adjustment of the retina and pupil of the eyes under conditions of low light enabling increased sensitivity to light. |
| diopter | A unit of measurement of the refractive power of a lens. |
| earache | Pain in the ear. |
| epiphora | Overflow of tears due to obstruction of the lacrimal duct. |
| episclera | The loose connective tissue between the sclera and the conjunctiva. |
| episcleritis | An inflammation of the sclera, causing redness of the eye. |
| heterophoria | A tendency for deviation of the eyes from parallelism, prevented by binocular vision. |
| hippus | Rhythmic pupillary dilation and constriction, independent of changes in illumination or convergence. |
| hyphema | Bleeding in the anterior chamber of the eye. |
| iridoplegia | Paralysis of the sphincter muscle of the iris or the dilator muscle |
| keratoconjunctivitis | Inflammation of the cornea and conjunctiva. |
| keratoconus | A conical protrusion of the central part of the cornea. |
| labyrinth | A complex system of ducts and cavities that comprise the organs of hearing and balance. |
| labyrinthitis | Inflammation of the inner ear (labyrinth). |
| macula lutea | An oval, yellow spot in the retina, 3 to 5 mm in diameter It is devoid of retinal blood vessels, except in its periphery. |
| maculopathy | Any pathologic condition of the macula lutea. |
| malleus | The largest and outermost of the three ossicles of the ear. Also called hammer. |
| mastoiditis | Inflammation of the mastoid air cells It is usually a complication of otitis media. |
| meibomian glands | The small sebaceous glands located on the inner surface of the eyelids between the tarsal plates and conjunctiva. |
| miosis | Excessive pupillary constriction. |
| miotics | Drugs causing contraction of the pupil. |
| myringitis | Inflammation of the eardrum. |
| nasolacrimal duct | A tubular duct that conveys tears from the lacrimal gland to the nose. |
| nictation | A reflex that closes and opens the eyes rapidly. Blinking. |
| ocular absorption | Uptake of substances by tissues of the eye. |
| ocular hypertension | A condition in which the intraocular pressure is elevated above normal and which may lead to glaucoma. |
| ocular hypotension | Abnormally low intraocular pressure often related to chronic inflammation. |
| oculomotor | Pertaining to or affecting eye movements. |
| ophthalmia | Severe inflammation of the eye. |
| ophthalmoplegia | Paralysis of one or more of the ocular muscles. |
| optic nerve | The second cranial nerve which conveys visual information from the retina to the brain. |
| optic neuritis | Inflammation of the optic nerve. |
| optic tract | Nerve fiber originating from the optic chiasm that connects predominantly to the lateral geniculate bodies. it is the continuation of the visual pathway that conveys the visual information originally from the retina to the optic chiasm via the optic nerves. |
| orbital myositis | Inflammation of the extraocular muscle of the eye. It is characterized by swelling. |
| ossicle | A small bone, especially of the middle ear. |
| otitis | Inflammation of the ear, which may be marked by pain, fever, hearing disorders and vertigo. |
| otolaryngology | A surgical specialty concerned with the study and treatment of disorders of the ear, nose, and throat. |
| panuveitis | Inflammation of both the anterior and posterior segments of the uvea tract. |
| photalgia | Pain in the eye causes by bright light. |
| photoretinitis | Injury to the retina of the eye caused by looking directly into the sun without protection. |
| proptosis | Protrusion or bulging of the eye. |
| pseudophakia | Presence of an intraocular lens after cataract extraction. |
| saccades | An abrupt voluntary shift in ocular fixation from one point to another, as occurs in reading. |
| saccule | One of the two membranous sacs within the vestibule of the inner ear. It contains fluid, responses to gravity and provides the brain with information about head position. |
| sclera | The white, opaque, fibrous, outer envelope of the eyeball, covering it entirely except the cornea. |
| scotoma | An area of diminished vision within the visual field. |
| scotopic | Pertaining to the adjustment of the eye to low illumination. |
| semicircular canals | Three long canals (anterior, posterior, and lateral) of the bony labyrinth. They are set at right angles to each other and are concerned with balance. |
| stapes | One of the three ossicles of the middle ear. It transmits sound vibrations from the incus to the internal ear. |
| tectorial membrane | A membrane, present in the cochlea of the inner ear, that runs parallel with the basilar membrane. |
| trachoma | A chronic infection of the conjunctiva and cornea caused by chlamydia trachomatis. |
| trichiasis | A condition of ingrown hair around an orifice, particularly ingrown eyelashes. |
| tympanic membrane | A thin, oval, semitransparent membrane separating the external ear canal from the tympanic cavity (ear, middle). |
| tympanocentesis | Needle aspiration of fluid from the middle ear through a puncture in the tympanic membrane. |
| uveal | Pertaining to the uvea. |
| uveitis | Inflammation of the uvea. |
Authors and Reviewers
Authored by Dr. Barbara A. EricksonMedically reviewed by Dr. Jonathan Keroes, MD
Last Update: 12/18/2022
