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chap 14 special senc

specail sences

ambiopia double vision caused by each eye focusing separately; also known as diplopia
blepharoptosis drooping of the upper eyelid
blepharospasm a twitching of the eyelid muscles; may be due to eyestrain or nervous irritability
conjunctivitis** inflamation of the conjunctiva of the eye; may be caused by a bacterial infection, a viral infection, allergy, or a response to the environment
cycloplegia paralysis of the ciliary muscle of the eye
dacryoadenitis inflammation of the lacrimal(tear) gland
dacryorrhea excessive flow of tears
diplopia double vision caused by each eye focusing separately.
ectropion eversion (turning outward) of the edge of the eyelid
entopion inversion (turning inward) of the edge of the eyelid
episcleritis inflammation of the outermost layers of the sclera
esotropia an obvious inward turning of one eye in relation to the other eye; also called crosseyes
extraocular pertaining to outside the eye
floaters one or more spots that appear to drift, or float, across the visual field
hemianopia loss of vision, or blindness, in one-half of the visual field
keratomycosis a fungal growth present on the cornea
lacrimation pertaining to tears
miotic an agent that causes the pupil of the eye to constrict
mydriasis abnormal dilatation of the pupil of the eye
mydriatic an agent that causes the pupil of the eye to dilate
nasolacrimal pertaining to the nose and the lacrimal (tear) ducts
nystagmus involuntary, rhythmis jerking movements of the eye. these "quuivering" movements may be from side to side, up and down, or a combination of both
opthalmologist** a medical doctor (m.d) who specializes in the comprehensive care of the eyes and visual system in the prevention and treatment of eye disease and injury.
opthalmology the branch of medicine that specializes in the study of the diseases and disorders of the eye
optometrist the optometrist, or doctor of optometry is responsible for examination of the eye, and associated structures to determine vision problems. he or she can also prescribe lenses or optical aids
photophobia abnormal sensitivity to light, especially by the eyes
presbyopia** loss of accommodation for near vision; poor near-vision due to natural aging process
retinopathy** any disease of the retina
astigmatism a refractive error causing light rays entering the eye to be focused irregularly on the retina due to an abnormally shaped cornea or lens
blepharitis acute or chronic inflammation of the eyelid margins stemming from seborrheic, allergic, or bacterial origin
blepharoptosis occurs when the eyelid partially or entirely covers the eye as a result of a weakened muscle
color blindness an inability to sharply perceive visual colors
cataract the lens in the eye becomes progressively cloudy, losing its normal transparency and thus altering the perception of images due to the interference of light transmission to the retina
chalazion a cyst or nodule of the eyelid resulting from an obstruction of a meibomian gland, which is responsible ofr lubricating the margin of the eyelid
conjunctivitis, acute inflammation of the mucous membrane lining the eyelids and covering the front part of the eyeball
corneal abrasion a disruption of the cornea's surface epithelium commonly caused by an eyelash, a small foreign body, contact lenses, or a scratch from a fingernail
medulla** internal part of a structure or organ
diabetic retinopathy occurs as a consequence of long-term or poorly controlled diabetes mellitus inwhich the tissues of the retina experience scarring due to the following.
exophtalmia an abnormal protrusion of the eyeball(s) usually with the sclera noticeable over the iris- typically due to an expanded volume of the obital contents
glaucoma ocular disorders identified as a
Created by: tyrantstrick