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108 Cards in this Set

  • Front
  • Back
aque/o
water
blephar/o
eyelid
conjunctiv/o
conjunctive (to join together)
corne/o
kerat/o
cornea
ir/o
irid/o
colored circle, iris
lacrim/o
dacry/o
tear
ocul/o
ophthalm/o
opt/o
eye
phac/o
phak/o
lens (lentil)
phot/o
light
presby/o
old age
retin/o
retina
scler/o
hard or sclera
vitre/o
glassy
-opia
condition of vision
anterior chamber
fluid filled space between cornea and iris
aqueous humor
watery liquid secreted at the ciliary body that fills the anterior and posterior chambers of the eye and provides nourishment for the cornea, iris, and lens
(humor=fluid)
canal of Schlemm
duct in anterior chamber that carries filtered aqueous humor to the veins and bloodstream
choroid
vascular layer beneath the sclera that provides nourishment to the outer portion of the retina
ciliary body
ring of muscle behind the peripheral iris that controls the focusing shape of the lens
ciliary muscle
smooth muscle portion of the ciliary body, which contracts to assist in near vision capabilty
ciliary process
epithelial tissue folds on the inner surface of the ciliary body that secrete aqueous humor
conjunctiva
mucous membrane that lines the eyelids and outer surface of the eyeball
cornea
transparent, anterior part of the eyeball covering the iris, pupil, and anterior chamber that functions to refract (bend) light to focus a visual image
eyelid (palpebra)
movable protective fold that opens and closes, covering the eye
fovea centralis
pinpoint depression in the center of the macula lutea that is the site of sharpest vision
(fovea=pit)
fundus (base)
interior surface of the eyeball including the retina, optic disc, macula, and posterior pole (curvature at the back of the eye)
glands of Zeis
oil glands surrounding the eyelashes
meibomian glands
oil glands located along the rim of the eyelids
iris
colored circle, colored part of the eye located behind the cornea that contracts and dialates to regulate light passing through the pupil
lacrimal gland
tubes that carry tears to the lacrimal sac
lacrimal sac
structure that collects tears before emptying into nasolacrimal duct
lens
transparent structure behind the pupil that bends and focuses light rays on the retina
lens capsule
capsule that encloses the lens
macula lutea (macula)
central region of the retina responsible for central vision; yellow pigment provies its color
(lutea=yellow)
nasolacrimal duct
passageway for tears from the lacrimal sac into the nose
optic disc
exit site of retinal nerve fibers
optic nerve
nerve responsible for carrying impulses for the sense of sight from the nerina to the brain
posterior chamber
space between the back of the iris and the front of the vitreous chamber filled with aqueous humor
pupil
black circular opening in the center of the iris through which light passes as it enters the eye
retina
innermost layer that perceives and trsmits light to the optic nerve
cones
cone-shaped cells within the retina that are color sensitive and respond to bright light
rods
rod-shaped cells within the retina that respond to dim light
sclera
tough, fibrous, white outer coat extending from the cornea to the optic nerve
trabecular mechwork
mesh-like structure in the anterior chamber that filters the aqueous humor as it flows into the canal of schlemm
vitreous
jelly-like mass filing the inner chamber between the lens and retina that gives bulk to the eye
asthenopia
eyestrain
(asthenia = weak)
blepharospasm
involuntary contraction of the muscles surrounding the eye causing uncontroled blinking and lid squeezing
diplopia
double vision
exophthalmos
abnormal protrusion of one or both eyeballs
lacrimation
secretion of tears
nystagmus
involuntary, rapid oscillating movement of the eyeball
(nystagmos = a nodding)
photophobia
extreme sensitivity to, and discomfort from, light
scotoma
blind spot in vision
(skotos = darkness)
refractive errors
defects in the bending of light as it enters the eye, causing an improper focus on the retina
astigmatism
distorted cision caused by an oblong or cylindrical curvature of the lens or cornea that prevents light rays from coming to a single focus on the retina
(stigma = point)
hyperopia
farsightedness; difficulty seeing close objects when light rays are focused on a point behind the retina
myopia
impaired vision caused by old age or loss of accommodation
accommodation
ability of the eye to adjust focus on near objects
aphakia
absence of the lens usually after cataract extraction
blepharitis
inflamation of the eyelid
blepharochalasis
dermatochalasis
baggy eyelid; overabundence and loss of elasticity of skin on the upper eyelid causing a fold of skin to hang down over the edge of the eyelid when the eyes are open
blepharoptosis
ptosis
drooping of the eyelid, usually caused by paralysis
chalazion
chronic nodular inflammation of the meibomian gland, usually the result of a blocked duct
(chalaza=hailstone)
cataract
opaque clouding of the lens causing decreased vision
conjunctivitis
pink eye; inflamation of the conjunctiva
dacryoadenitis
inflammation of the lacrimal gland
diabetic retinopathy
disease of the retina in diabetics characterized by capillary leakage, bleeding, and new vessel formation leading to scaring and loss of vision
dacryocystitis
inflammation of the tear sac
ectropion
outward turning of the rim of the eyelid (tropo=turning)
entropion
inward turning of the eyelid
epiphora
abnormal overflow of tears caused by blockage of the lacrimal duct
glaucoma
group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision
hordeolum
sty; an acute infection of a sabaceous gland of the eyelid
iritis
inflammation of the iris
keratitis
inflammation of the cornea
macular degeneration
breakdown or thinning of the tissues in the macula, resulting in partial or complete loss of central vision
pseudophakia
an eye in which the natural lens is replaced with an artifical lens implant
pterygium
fibrous, wing-shaped growth of conjunctival tissue that extends onto the cornea, developing most commonly from prolonged exposure to ultraviolet light
retinitis
inflammation of the retina
strabismus
heterotropia
condition of eye misalingment caused by intraocular muscle imbalance
esotropia
right or left eye deviates inward (toward nose)
exotropia
right or left eye deviates outward (toward nose)
scleritis
inflammation of the sclera
trichiasis
misdirected eyelashes that rub on conjunctiva or cornea
distance visual acuity
measure of the ability to see the details and shape of identifiable objects from a specified distance, 20ft
20/20 vision
fluorescein angiography
visualization and photography of retinal and choroidal vessels made as fluorescein dye, which is injected into a vein, circulates through the eye
ophthalmoscopy
use of an ophthalmoscope to view the interior of the eye
slit lamp biomicroscopy
use of a tabletop microscope used to examine the eye, espevially the cornea, lens, fluids, and membranes
sonography
use of high-frequency sound waves to detect pathology within the eye, such as foreign bodies or detached retina
tonometry
use of a tonometer to measure intraocular pressure, which is elevated in glaucoma
blepharoplasty
surgical repair of an eyelid
cataract extraction
excision of a cloudy lens from the eye
cryoretinopexy
cryopexy
use of intense cold to seal a hole or tear in the retina; used to reate retinal detachment
dacryocystectomy
excision of a lacrimal sac
enucleation
excision of an eyeball
iridectomy
incision into the iris to allow for drainage of aqueous humor from the posterior to anterior chamber; used to treat a type of glaucoma
keratoplasty
corneal transplant
laser surgery
use of a laser to make incision or destroy tissues
laser-assisted in situ keratomileusis (LASIK)
use of excimer laser to reshape the surface of the cornea to correct refractive errors
intraocular lens (IOL) implant
implantation of an artifical lens to replace a defective natural lens
phacoemulsification
use of ultrasound to shatter and break up a cataract with aspiration and removal
contact lens
small, plasitc, curved disc with optical correction that fits over the cornea; used to correct refractive errors
eye instillation
introduction of a medicated solution in the eye
drop (gt)
drops (gtt)
OD
OS
OU
right eye
left eye
both eyes
eye irrigation
washing of the eye with water or other fluid
antibiotic ophthalmic solution
antimicrobial agent in solution; used to treat bacterial infections
mydriatic
agent that causes the dialation of the pupil
used for eye exams
miotic
and agent that causes the pupil to contract