Chapter 11; Special Senses: The Eyes and Ears
Radial Keratotomy
A Surgical procedure to treat myopia
Pterygium
A benign growth on the cornea that can become large enough to distort vision
Nyctalopia
A condition in which an individual with normal daytime vision has difficulty seeing at night
Astigmatism
A condition in which the eye does not focus properly beause of uneven curvatures in the cornea
Anisocoria
A condition in which the pupils are unequal in size
Hyperopia
A defect in which light rays focus beyond the retina
Myopia
A defect in which light rays focus in front of the retina
Amblyopia
A dimness of vision or the partial loss of sight, especially in one eye, without detectable disease of the eye
Strabismus
A disorder in which the eyes point in different directions or are not aligned correctly because the eyes muscles are unable to focus together
Otomycosis
A fungal infection of the external auditory canal
Glaucoma
A group of diseases characterized by increased intraocular pressure that cause damage to the retinal nerve fibers and the optic nerve
Chalazion
A localized swelling inside of the eyelid reulting from obstruction of a sebaceous gland.
Hordeolum
A pus-filled lesion on the eyelid resulting from an infection in the sebaceous gland.
Fluorescin Angiography
A radiograpic study of the blood vessels in the retina of the eye following the intravenous injection of a fluorescein dye as a contrast medium
Cochlear Implant
An implanted electonic device that can give a deaf person a useful auditory understanding of the enviroment and/or hearing and help them to understand speech.
Keratitis
An inflammation of the cornea
Dacryoadenitis
An inflammation of the lacrimal gland that can be caused by bacterial, viral or fungal infection
Scleritis
An inflammation of the sclera
Iritis
An inflammation of the uveal tract affecting primarily structures in the front of the eye
Nystagmus
An involuntary, constant, rhythmic movement of the eyeball that can be congenital or caused by a neurological injury or drug use
Ametropia
Any error of refraction in which images do not focus properly on the retina
Otorrhagia
Bleeding from the ear
Hemianopia
Blindness in one-half of the visual field
Infectious Myringitis
Contagious inflammation that causes painful blisters on the ear drum
Blepharoptosis
Dropping of the upper eyelid that is usually due to paralysis
Xerophthalmia
Drying of eye surfaces including the conjunctiva
Ot/o
Ear, Hearing
Ophthalm/o
Eye, Vision
Opt/o
Eye, Vision
Blephar/o
Eyelid
Presbycusis
Gradual loss of sensorineural hearing that occurs with age
-Cusis
Hearing
Optometrist
Holds a Doctor of Optometry degree and specializes in measuring the accuracy of vision to determine whether corrective lenses are needed
Kerat/o
Horny, Hard, Cornea
Eustachitis
Inflammation of the eustachian tube
Otitis Media
Inflammation of the middle of the ear
Irid/o
Iris, Color part of eye
Phak/o
Lens of Eye
Presby/o
Old Age
Conjunctivitis
Pinkeye - An inflammation of the conjuctiva that is usually cause by an infection or allergy
Barotrauma
Pressure-related ear discomfort that can be caused by pressure changes when in very high or very low altitudes
Retin/o
Retina, Net
Tinnitus
Ringing, buzzing, or roaring sound in one or both ears.
Scler/o
Sclera, White of eye, Hard
Vertigo
Sense of whirling, dizziness, and the loss of balance, that is often combined with nausea and vomiting
Esotropia
Strabismus characterized by an inward deviation of one or both eyes
Exotropia
Strabismus characterized by the outward deviation of one eye relative to the other
Adnexa
Stucture outside of the eyeball - includes Orbit, Eye Muscles, Eyelids, Eyelashes, etc.
Papilledema
Swelling and inflammation of the optic nerve at the point of entrance into the eye through optic disk
Periorbital Edema
Swelling surrounding the eye or eyes
Otosclerosis
The ankylosis of the bones of the middle ear, resulting in a conductive hearing loss
Presbyopia
The condition of common changes in the eyes that occur with aging
Ectropion
The eversion of the edge of an eyelid
Otopyorrhea
The flow of pus from the ear
Entropion
The inversion of the edge of an eyelid
Cataract
The loss of transparency of the lens that causes a progressive loss of visual clarity
Tonometry
The measurement of intraocular pressure
Emmetropia
The normal relationship between the refractive power of the eye and shape of the eye that enables light rays to focus correctly on the retina
Tarsorrhaphy
The partial, or complete, suturing together of the upper and lower eyelids
Diplopia
The perception of two images of a single object
Vitrectomy
The removal of the vitreous fluid and its replacement with a clear solution
Myringotomy
The surgical incision in the eardrum to create an opening for the placement of tympanostomy tubes
Iridectomy
The surgical removal of a portion of the tissue of the iris
Mastoidectomy
The surgical removal of mastoid cells
Stapedectomy
The surgical removal of the top portion of the stapes bone and the insertion of a small prosthetic device known as a piston that conducts sound vibration to the inner ear.
Labyrinthectomy
The surgicial removal of all or a portion of the labyrinth
Ophthalmoscopy
The visual examination of the fundus (back part) of the eye with an ophthalmoscope
Tympanostomy tubes
Tiny ventilating tubes places through the eardrum to provide ongoing drainage for fluids and to relieve pressure that can build up after childhood ear infections
Trop/o
Turn, Change
Myring/o
Tympanic Membrane, Eardrum
Tympan/o
Tympanic Membrane, Eardrum
Tympanometry
Use of air pressure in the ear canal to test for disorders of the middle ear
Retinopexy
Used to reattach the detached area in a retinal detachment
Laser Trabeculoplasty
Uses a focused beam of light to create a hole in the iris of the eye
-Opia
Vision condition