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special senses WL

special senses word list

Adjustment of the eye, enabling light rays to focus on the retina. Adjustment of the thickness of the lens to make close vision possible Accommodation
Achromatopsia Colour blindness
Amblyopia Strabismus or "lazy eye syndrome" in children
Ametropia An error in refraction causing poor focus
Anacusis Deafness
Anosmia Loss of the sense of smell
Astigmatism A form of ametropia in which a defective lens causes diffusion of light rays over the retina,rather than sharply focusing at a given point. Imperfection of the curvature.
Blepharoptosis prolapse of the eyelid.
Blepharoplasty Surgical repair of the eyelid
Cataracts Opacities on the lens or the capsule that encloses the lens, causing loss of vision. Treatment usually involves removal of the lens.
Cerumen A waxy secretion produced by the glands of the external ear canal to prevent the entrance of tiny foreign particles.
Ciliary Muscles Muscles which relax or contract to alter the shape of the lens, making it thicker or thinner, thus enabling the light rays to focus upon the retina.
Cochlea Snail shaped inner ear structure.
Conjunctivitis Inflammation of the conjunctiva
Cones Senses Colour vision.
Corectasis Dilation of the pupil.
Cornea The clear, transparent portion of the sclera, anterior to the lens. "window" of the eye.
Cycloplegic agents Agents which paralyze ciliary muscles,causing dilation of the pupils.
dacryocystorhinostomy Creation of an opening into the nose for drainig of tears.
dacryorrhea Flow of tears.
Ear canal Slender tube lined with glands, through which sound waves travel to the middle ear.
Emmetropia Correct vision/Normal vision.
Equilibrium A state of balance, controlled by the semicircular canals and the vestibule.
Esotropia Inward turning of the eye.
ET Exotropia.(Turning outward of the eyes)
Eustachitis Inflammtion of the eustachian tube.
Exotropia Outward turning of the eye.
Evisceration Removal of the viscera (contents of an organ)
Eustachian Tube A tube which connects the nose and the throat with the cavity of the middle ear. Equilizes pressure on both sides of the eardrum.
Fovea Area of clearest,sharpest vision in the retina.
Glaucoma Eye disease with increased pressure within the eyeball. Increase in intraocular pressure.
Hairs of Corti Tiny nerve ending within the cochlea which combine with cochlear fluid to generate nerve impulses to the brain via the auditory nerve.
Hyperopia Farsightedness.
Incus One of the three bones of the middle ear; shaped like an anvil. Transmits vibrations from the malleus to staples.
Iris Coloured part of the eye.
Intracapsular Extraction Use of a cold metal probe to remove cataracts.
Iridectomy Excision of the iris.
Iritis Inflammation of the iris.
Keratocentesis Surgical puncture of the cornea.
Labyrinthitis Inflammation of the inner ear, causing vertigo.
Lacrimal Pertaining to a tear.
Lens Crystalline body of accommodation.
Malleus One of the three bones of the middle ear; shaped like a hammer. Transmits vibrations from the eardrum ti incus.
Mastoid Process One of the temoral bones which encloses the sinuses.
Mydriatics Medication which dilates the puplis.
myopia Nearsightedness.
Myringoplasty Reconstruction of the ear drum.
Nyctalopia Night blindness.
Ophthalmoplegia Paralysis of the eye.
Optometrist One who specializes in eye measurements.
Ossicles Three tiny articulating bones in the middle ear.
Otalgia Ear pain.
Otitis media Inflammation of the middle ear.
Otoplasty Corrective surgery for macrotia/microtia or deformity.
Otopyorrhea Dischagre of pus from the ear.
Otosclerosis Hardening of the spongy bone around the oval window of the ear, causing hearing loss.
Otoscopy Visual examination of the ear.
Photopigments Chemicals contained in the rods and cones which send nerve impulses through the optic nerve to the brain.
Presbyopia Far sightedness associated with old age. Loss of elasticity of the lens with age.
Retinitis Pigmentosa Chronic progressive disease of degeneration of the retina and atrophy of the optic nerve.
Retinaopathy Disease of the retina.
Retinoscopy Visual examination of the retina.
Rods Senses vision in dim light.
Sclera The white of the eye, composed of a tough, fibrous tissue which serves as a protective shield for the more sensitive structures underneath.
Sclerostomy Creation of a new opening in the sclera.
Semicircular Canals One of the three structures of the inner ear, responsible for balance.
ST Esotropia.(turning inward of the eyes)
Strabismus Abnormal positioning of the eyes so they deviate in different directions. One eye out of synchrony.
Stapes One of the three bones of the middle ear; shaped like stirrups. Transmits vibrations from incus to window.
Sty(e) A localized circumscribed inflammation of the sebaceous gland of the eyelid, also called a hordeolum.
Trachoma A chronic contagoius form of conjunctivitis.
Vestibule A chanber that joins the cochlea and semicicular canals.
Rem Rapid eye movement.
Created by: zeldafan