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88 Cards in this Set
- Front
- Back
Eyebrows |
keep sweat from running into the eye and function in nonverbal communication |
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Eyelids |
protect the eye from foreign objects |
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Eyelashes |
strong hairs that help keep debris out of the eyes |
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Function of tears |
1. clean and lubricate the surface of the eye 2. deliver nutrients and oxygen to the conjunctiva 3. prevent infection through a bactericidal enzyme called lysozyme |
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canthus |
corner of the eye where upper and lower lids meet |
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c'onjunctiva |
inner lining of the eyelids |
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cornea |
central, transparent part of the outer coat of they eye covering the iris and pupil |
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lacrimal |
pertaining to tears |
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nasolacrimal duct |
passage from the lacrimal sac to the nose |
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lysozyme |
enzyme that dissolves the cell walls of bacteria |
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opthalmology |
medical specialty that diagnoses and treats diseases of the eye |
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orbit |
bony socket that holds the eyeball |
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periorbital |
pertaining to tissues around the orbit |
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pink eye |
conjunctivitis |
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purulent |
showing or containing a lot of pus |
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tarsus |
flat fibrous plate that gives shape to the outer edges of the eyelids |
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antibiotic |
substance that has the capacity to destroy bacteria and other microorganisms |
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blepharitis |
inflammation of the eyelid |
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chalazion |
cyst on the outer edge of an eyelid |
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contagious |
able to be transmitted, as infections transmitted from person to person or from person to air or surface to person |
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contaminate |
to case the presence of an infectious agent to be on any surface |
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dacryostenosis |
narrowing of the nasolacrimal duct |
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hordeolum stye |
abscess in an eyelash follicle |
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paresis |
partial paralysis |
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ptosis |
sinking down of an eyelid or organ |
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accommodation |
act of adjusting something to make it fit the needs; in the case of the eye, the lens adjusts itself |
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amblyopia |
failure or incomplete development of the pathways of vision to the brain |
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atropine |
pharmacologic agent used to dilate pupils |
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congenital |
present at birth, either inherited or due to an event during gestation up to the moment of birth |
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esotropia |
a turning of the eye inward toward the nose |
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exotropia |
a turning of the eye outward away from the nose |
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extrinsic |
extrinsic eye muscles are located on the outside of the eye, as opposed to intrinsic muscles, which are located inside the eye |
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ocular |
pertaining to the eye |
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optometrist |
someone who is skilled in the measurement of vision but cannot treat eye diseases or prescribe medication |
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steropsis |
three-dimensional visual |
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strabismus |
a turning of an eye away from its normal position |
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functions of eyeball |
1. adjust 2. focus 3. produce images |
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ciliary body |
muscles that make the eye lens thicker and thinner |
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iris |
colored portion of the eye with the pupil in its center |
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lens |
transparent refractive structure behind the iris |
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presbyopia |
difficulty in nearsighted vision occuring in middle and old age |
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pupil |
opening in the center of the iris that allows light to reach the lens |
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refract |
make a change in direction of, or bend, a ray of light |
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retina |
light-sensitive inner layer of eyeball |
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sclera |
fibrous outer covering of the eyeball and the white of the eye |
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scleritis |
inflammation of the sclera |
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sphincter |
band of muscle that encircles an opening; when it contracts, the opening squeezes closed |
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astigmatism |
inability to focus light rays that enter the eye in different planes |
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chiasm |
x-shaped crossing of the two optic nerves at the base of the brain |
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emmetropia |
normal refractive condition of the eye |
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foramen |
an opening through a structure |
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hyperopia |
able to see distant objects but unable to see close objects |
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in situ |
in the correct place |
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keratomileusis |
surgical procedure that involves cutting thand shaping the cornea |
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keratotomy |
incision in the cornea |
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myopia |
able to see close objects but unable to see distant objects |
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presbyopia |
difficulty in nearsighted vision occuring in middle and old age in both sexes |
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radiation |
a spreading out, as of anatomical parts |
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tract |
bundle of nerve fibers with a common origin and destination |
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abrasion |
area of skin or mucous membrane that has been scraped off |
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allergen |
substance producing a hypersensitivity reaction |
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cataract |
complete or partial opacity of the lens |
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fluorescein |
dye that produces a vivid green color under a blue light to diagnose corneal abrasions and foreign bodies in the eye |
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glaucoma |
increased intraocular pressure |
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infectious |
capable of being transmitted, or caused by infection by a microorganism |
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intraocular |
pertaining to the inside of the eye |
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ophthalmia neonatorum |
conjunctivitis of the newborn |
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peripheral vision |
ability to see objects as they come into the outer edges of the visual field |
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phacoemulsification |
technique used to fragment the center of the lens into very tiny pieces and suck them out of the eye |
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photosensitivity |
condition in which light produces pain in the eye |
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pollution |
condition that is unclean, impure and a danger to health |
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angiography |
radiography of vessels after injection of contrast material |
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cryopexy |
repair of a detached retina by freezing it to surrounding tissue |
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intracranial |
within skull |
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laser surgery |
use of a concentrated, intense narrow beam of electromagnetic radiation for surgery |
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leukocoria |
reflection in pupil of white mass in the eye |
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metastasis |
spread of disease from one part of the body to another |
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microaneurysm |
focal dilation of retinal capillaries |
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ophthalmoscope |
instrument for viewing the retina |
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apilledma |
swelling of the optic disc in the retina |
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photocoagulation |
use of light to form a clot |
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retinoblastoma |
malignant neoplasm of primitive retinal cells |
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retinopathy |
degenerative disease of the retina |
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fundus |
part farthest from the opening of a hollow organ |
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ishihara color system |
test for color vision defects |
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jaeger reading cards |
printed in different sizes of print for testing near vision |
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snellen letter chart |
test for acuity of distant vision |
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tonometer |
instrument for determining intraocular pressure |