Chapter 12: Eye Flashcards
Asthenopia
Eyestrain
Blepharospasm
Involuntary contraction of the muscles surrounding the eye, causing uncontrolled 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
Chalazion
Chronic modular inflammation of a merbromin gland, usually the result of a blocked duct; swelling
Cataract
Clouding of the lens causing decreased vision
Nystagmus
Involuntary, rapid oscillating movement of the eyeball
Chalazion
Chronic modular inflammation of a merbromin gland, usually the result of a blocked duct; swelling
Cataract
Clouding of the lens causing decreased vision
Conjunctivitis
Pink eye; inflammation of the conjuctiva
Dacryoadentis
Inflammation of the lacrimal gland
Dacryocystitis
Inflammation of the tear sac
Retinitis
Inflammation of the retina
Macular degeneration
Breakdown or thinning of the tissue in the macula, resulting in partial to complete loss of central vision
Pseudophakia
Eye in which the natural lens in replaced with an artificial lens implant
Pterygium
Fibrous growth of conjunctival tissue that extends onto the cornea
aque/o
water
blephar/o
eyelid
conjunctiv/o
conjunctiva (join together)
corne/o
cornea
kerat/o
cornea
cycl/o
ciliary body (circle)
ir/o
iris (colored circle)
irid/o
iris (colored circle)
lacrim/o
tear
dacry/o
tear
ocul/o
eye
ophthalm/o
eye
opt/o
eye
phac/o
lens (lentil)
phak/o
lens (lentil)
phot/o
light
presby/o
old age
retin/o
retina
scler/o
sclera (hard)
vitre/o
glassy
-opia
condition of vision
photophobia
extreme sensitivity to, and discomfort from, light
scotoma
blind spot 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
myopia
nearsightedness
presbyopia
impaired vison owing to old-age loss of accommodation
amblyopia
decreased vision in early life due to a functional defect that can occur as a result of strabismus, refractive errors or trauma.
aphakia
absence of the lens, usually after cataract extraction
blepharitis
inflammation of the eyelid
blepharochalasis, dermatochalasis
baggy eyelid
bleparoptosis
drooping of the eyelid usually caused by paralysis
diabetic retinopathy
disease of the retina in diabetics characterized by capillary leakage, bleeding, and new vessel formation, leading to scarring and loss of vision.
ectropion on test
outward turning of the rim of the eyelid
entropion on test
inward turning of the rim of the eyelid
glaucoma
group of diseases of the eye charactized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision
hordeolum
sty
iritis
inflammation of the iris
keratitis
inflammation of the cornea
retinal detachment
separation of the retina from the underlying epithelium, disrupting vision and resulting in blindness if not repair surgically.
scleritis
inflammation to the sclera
trichiasis
misdirected eyelashes that rub on the conjunctiva or cornea
distance visual acuity
measure the ability to see the details and shape of identifiable objects from a specified distance, typically using a Snellen Chart
fluorescein angiography
visualization and photograpthy of retinal and choroidal vessels made as fluresein dye, which is injected into a vein, circulates through the eye
ophthalmoscopy
use of an ophthalmoscope to view the interior of the eye
refraction
measurement of refractive error using a phoropter to determine best corrected vision and prescription for eye glasses or contact lenses
phoropter
instrument that holds corrective lenses in front of the eye to determine optical correction
slit-lamp biomicroscopy
use of a tabletop microscope to examine the eye especially the cornea, lens, fluids, and membranes
blepharoplasty
repair of an eyelid
cataract extraction
excision of a cloudy lens from the eye
cryoretinopexy
use of intense cold to seal a hole or tear in the retina
dacryocystectomy
excision of a lacrimal sac
enucleation
excision of an eyeball
keratoplasty
corneal transplant
iridectomy
excision of a portion of iris tissue
iridotomy
incision into the iris to allow drainage
contact lens
small plastic curved disk with optical correction that fits over the cornea
eye instillation
introduction of a medicated solution in the eye
eye irrigation
washing of the eye with water or other fluid
antibiotic ophthalmic solution
antimicrobial agent in solution, used to treat bacterial infections
cycloplegic
agent that paralyzes the ciliary muscle and powers of accommodation
mydriatic
agent that cause dilation of the pupil
miotic
agent that causes the pupil to contract