Chapter 30 Assisting in Ophthalmology & Otolaryngology, Assisting in ophthalmology and otolaryngology
Terms in this set (113)
An instrument used to measure intraocular pressure.
examination of the angle of the anterior chamber of the eye to determine ocular motility and rotation and diagnose and manage glaucoma
The unit of measurement used in hearing examinations: a wave frequency equal to 1 cycle per second
v. To turn inside out.
The region at the back of the eye where the optic nerve meets the retina; it is considered the blind spot of the eye, because it contains only nerve fibers and no rods or cones and thus is insensitive to light.
The adjustment of the eye that allows a person to see various sizes of objects at different distances.
Reduction or dimness of vision with no apparent organic cause; often referred to as lazy eye syndrome.
An allied healthcare professional who specializes in the evaluation of hearing function, detection of hearing impairment, and determination of the anatomic site of impairment.
Structures in the retina that make the perception of color possible.
A small pit in the center of the retina that is considered the center of clearest vision.
Any substance or medication that causes constriction of the pupil.
A topical ophthalmic medication that dilates the pupil; it is used in diagnostic procedures of the eye and as a treatment for glaucoma.
The formation of spongy bone in the labyrinth of the ear, which often causes the auditory ossicles to become fixed and unable to vibrate when sound enters the ears.
A medicine or substance capable of damaging the eighth cranial nerve or the organs of hearing and balance.
A usually chronic, recurrent skin disease marked by bright red patches covered with silvery scales.
Structures in the retina of the eye that form the light-sensitive elements.
An excessive discharge of sebum from the sebaceous glands, forming greasy scales or cheesy plugs on the body.
abnormal sensitivity to light
The second cranial nerve,which carries impulses for the sense of sight
A noise sensation of ringing heard in one or both ears
A licensed medical physician who can treat diseases and disorders of the actual eye
Doc who examines and treats visual disorders/problems seeing
Are trained to fill prescriptions written for corrective lenses by grinding the lenses and dispensing eyewear
...structures of the outer eye
squinting, blurring of vision, headaches
Signs and symptoms of refractive errors
inflammation of the middle ear
inflammation of outer ear
Failure of the eyes to track together, which means both eyes do not look in the same direction at the same time. This could be caused by diabetes mellitus, muscular dystrophy, hypertension, or head injury.
Correctable until approximately 7 years of age or until the retina is fully developed. Treatment involves the child wearing a patch over the unaffected eye so that the muscles of the "lazy" eye is strengthened. Main symptom is double vision (diplopia)
gives a microscopic view of of lens of the eye
Hardening of the ossicles
will cause a form of conduction hearing loss
cause pupil constriction
Tympanogram will show increased pressure against the tympanic membrane which
indicates fluid collection in the middle ear
Semicircular canals in the inner ear
Blinking the eyes help
Rods and Cones
located in the retina where the neurological stimulus of vision originates
checks for bone conduction hearing so it is placed against the skull at the top of the head
genetic trait passed from mother to son
clouding of the lens
the process of bending light so it will focus on the retina for clear vision
causes involuntary movement of the eyes
chronic abnormal noise or ringing in the ears
a surgical procedure that uses laser to treat refractive errors
procedure that uses high intensity sound waves to break up a cataract before it is removed
loss of central vision and ultimately leads to blindness
sensorineural hearing loss that occurs with aging
causes destruction of the hair cells of the cochlea with recurring attacks of vertigo and nausea and progressive hearing loss
Loss of close vision due to age
Color Vision Eye Exam
Hearing loss due to otosclerosis
First bone of the ear
Study of the eyes
Curvature of the lens that causes myopia
Third bone of the ear
Snellen chart used for non-lettered individuals
Chart used for visual distance exam
MD that treats diseases and conditions of ear, nose and throat
2nd bone of the ear
hearing loss due to loud noises
Involuntary rapid eye movements
an injury, such as a scratch or irritation, to the outer layers of the cornea
clouding of the lens of the eye
increased intraocular pressure results in damage to the retina and optic nerve with loss of vision
progressive damage to the macula of the retina
sty; an acute infection of a sebaceous gland of the eyelid
a nodule or cyst, usually on the upper eyelid, caused by obstruction in a sebaceous gland
inflammation of the cornea
inflammation of the conjunctiva (pink eye)
inflammation of the glands and eyelash follicles along the margin of the eyelids
impaired vision as a result of aging
a condition in which the eye does not focus properly because of uneven curvatures of the cornea
inflammation of the middle ear
yellow waxy material that lubricates and protects the ear canal
Second little bone of the middle ear; shaped like an anvil
hammer; first of the three auditory ossicles of the middle ear
Third ossicle of the middle ear. Stapes means stirrup.
membrane between the middle ear and the inner ear
pupils equal, round, reactive to light and accommodation
absence of vision in half of the visual field
Colored part of the eye: surrounds the pupil
jellylike substance found behind the lens in the posterior cavity of the eye that maintains its shape
The transparent body behind the iris and in front of the vitreous humor; Refracts light rays to bring them into focus on the retina
Contains muscle that controls the shape of the lens and secrets aqueous humor
Contain sensitive sells (rods and cones) that transmit light energy to nervous impulses
Dark center of the eye through which light rays enter
Fibrous layer of clear tissue that extends over the anterior portion of the eyeball