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110 Cards in this Set

  • Front
  • Back
aque/o
water
blephar/o
eyelid
conjunctiv/o
conjunctiva (to join together)
corne/o, kerat/o
cornea
ir/o, irid/o
colored circle, iris
lacrim/o, dacry/o
tear
ocul/o, opthalm/o, opt/o
eyes
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 chamber of the eye and provides nourishment for the cornea, iris, and lens
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 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 capability
ciliary processes
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 (bend0 light to focus a visual image
eyelid (palebra)
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
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 eyelid
iris
colored circle; colored part of the eye located behind the cornea that contracts and dilates to regulate light passing through the pupil
lacrimal gland
gland located in the upper outer region above the eyeball that secretes tears
lacrimal ducts
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 provides its color
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 retina 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
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 meshwork
mesh-like structure in the anterior chamber that filters the aqueous humor as it flows back into the canal of schlemm
vitreous
jelly-like mass filling the inner chamber between the lens and retina that gives bulk to the eye
asthenopia
eyestrain
blepharospasm
involuntary contraction of the muscles surrounding the eye causing uncontrolled blinking and lid squeezing
diplopia
double vision
exopthalmos, exopthalmus
abnormal protrusion of one or both eyes
lacrimation
secretion of tears
nystagmus
involuntary, rapid oscillating movement of the eyeball
photophobia
extreme sensitivity to, and discomfort from, light
scotoma
blind spot in vision
refractive errors
defects in the bending of light as it enters the eye, causing an improper focus on the retina
astigmatism
distorted vision 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
hyperopia
farsightedness; difficulty seeing close objects when light rays are focused on a point beyond the retina
myopia
nearsightedness; difficulty seeing distant objects when light rays are focused on a point in front of the retina
presbyopia
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
blephritis
inflammation of the eyelid
blepharochalasis, dermatochalasis
baggy eyelid; overabundance 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 a meibomian gland, usually the result of a blocked duct
cataract
opaque clouding of the lens causing decreased vision
conjunctivitis
pinkeye; inflammation of the conjunctiva
dacryoadenitis
inflammation of the lacrimal gland
dacryocystitis
inflammation of the tear sac
diabetic retinopathy
disease of the retina in diabetics characterize by capillary leakage, bleeding, and new vessel formation leading to scarring and loss of vision
extropion
outward turning of the rim of the eyelid
entropion
inward turning of the rim of the eyelid
epiphora
abnormal overflow of tears caused by blockage of the lacrimal duct
glaucoma
a group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optics nerve, producing defects in vision
hordeolum
a sty; an acute infection of a sebaceous gland of the eyelid
iritis
inflammation of the iris
keratitis
inflammation of the corneamascular degeneration
mascular 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 artificial lens implant
pterygium
a fibrous, wing-shaped growth of conjunctival tissue that expands onto the cornea, developing most commonly from prolonged exposure to ultraviolet light
retinal detachment
separation of the retina from underlying epithelium, disrupting vision and resulting in blindness if not repaired surgically
retinitis
inflammation of the retina
strabismus, heterotropia
a condition of eye misalignment caused by intraocular muscle imbalance
esotropia
right or left eye deviates inward toward nose
exotropia right or left eye deviates outward away from nose
right or left eye deviates outward away from nose
scleritis
inflammation of the sclera
trichiasis
misdirected eyelashes that rub on conjunctiva cornea
distance visual acuity
a measure of the ability to see the details and shape of identifiable objects from a specified distance, usually from 20 feet, normal distance visual acuity is 20/20
fluorescein angiography
visualization and photography of retinal and choroidal vessels made as fluorescein dye, which is injected into a vein, circulates through the eye
opthalmoscopy
use of an opthalmoscope to view the interior of the eye
slit lamp biomicroscopy
use of a tabletop microscope used to examine the eye, especially 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
use of intense cold to seal a whole or tear in the retina; used to treat retinal detachment
dacryocystectomy
excision of a lacrimal sac
enucleation
excision of an eyeball
iridectomy
excision of a portion of iris tissue
iridotomy
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 incisions or destroy tissues
laser-assisted in situ keratomileusis (LASIK)
a technique using the excimer laser to reshape the surface of the cornea to correct refractive errors such as myopia, hyperopia, and astigmatism
intraocular lens implant (IOL)
implantation of an artificial lens to replace a defective natural lens
phacoemulsification
use of ultra sound to shatter and break up a cataract with aspiration and removal
contact lens
a small; plastic curves disc with optical correction that fits over the cornea; used to correct refractive errors
eye instillation
introduction of a medicated solution in the eye usually administered by drop (gt) or drops (gtt) in affected eye or eyes
eye irrigation
washing of the eye with water or other fluid
antibiotic opthalmic solution
antimicrobial agent in solution; used to treat bacterial infections
mydriatic
an agent that causes dilation of the pupil
miotic
an agent that causes the pupil to contract