Special Senses: The Eyes (Chapter 7) Flashcards
eyestrain
asthenopia
drooping of an eyelid
blepharoptosis
normal condition of the eye
emmetropia (Em)
condition of white in the pupil
leukocoria
pain associated with the eye
ophthalmalgia
hemorrhage (bleeding) of the eye
ophthalmorrhagia
Ast: defective curvature of the refractive surface of the eye
astigmatism
inflammation of the eyelid
blepharitis
reduction of transparency of the lens
cataract
localized swelling at the edge of an eyelid caused by obstruction of a meibomian gland
chalazion
inflammation of the conjunctiva; pinkeye
conjunctivitis
inflammation of the cornea & iris
corneoiritis
inflammation of the lacrimal sac
dacryocystitis
separation of the retina from the choroid at the back of the eye
detached retina
double vision
diplopia
inflammation of internal tissues of the eye
endophthalmitis
loss of vision resulting from increased intraocular pressure, damaging the optic nerve
glaucoma
infection of a meibomian gland, causing local swelling of the eyelid AKA sty
hordeolum
reduced vision of nearby objects AKA farsightedness
hyperopia
paralysis of the iris
iridoplegia
inflammation of the iris
iritis
inflammation of the cornea
keratitis
ARMD: progressive deterioration of an area of the retina know as the macula lutea, leading to loss of central vision; most common cause is age
macular degeneration
reduced vision of distant objects AKA nearsightedness
myopia
poor vision at night or in dim light
nyctalopia
involuntary, rhythmic movements of the eye
nystagmus
fungal infection of the eye
oculomycosis
general term for a disease of the eye
ophthalmopathy
paralysis of the eye that affects the muscles moving the eyeball
ophthalmoplegia
abnormal fear of light, often caused by abnormal sensitivity to light
photophobia
inflammation of the retina caused by extreme light intensity
photoretinitis
impaired vision due to aging
presbyopia
abnormal fold of fibrous tissue that extends between the conjunctiva & cornea
pterygium
inherited disease characterized by night blindness, progressive atrophy, & retinal pigment changes
retinitis pigmentosa
malignant tumor that originates from a developing retinal cell
retinoblastoma
disease of the retina
retinopathy
inflammation of the sclera & cornea
sclerokeratitis
softening of the sclera
scleromalacia
abnormal blind spot in vision
scotoma
condition of crossed eyes caused by the visual axes failing to meet at the same point; causes a noticeable squint & can be characterized as esotropia (one or both eyes deviate inward) or exotropia (one or both eyes deviate outward)
strabismus
surgical repair of an eyelid
blepharoplasty
surgical excision of a lens that has lost its clarity
cataract extraction
VA: test of ability to see details & shape of objects from recorded distances
distance visual acuity
excision of an eyeball from the socket
enucleation
visual recording of blood vessels in the retina & choroid using fluorescein dye, which is injected into a vein & circulates thru the eye
fluorescein angiography
surgical implantation of an artificial lens to replace a defective natural lens
intraocular lens transplant
surgical excision of a portion of the iris
iridectomy
incision into the iris to allow the aqueous humor to drain from the anterior chamber; usually performed w/ a laser to treat glaucoma
iridotomy
procedure using a handheld device called a keratometer, which measures the curvature of the cornea; usually used for fitting contact lenses
keratometry
corneal transplant
keratoplasty
laser-assisted in situ keratomileusis: use of a laser to reshape the corneal tissue beneath the surface of the cornea to correct vision abnormalities
LASIK
variety of procedures using specialized instruments to assist in the diagnosis of eye disorders
ophthalmic evaluation
physician who specializes in the treatment of eyes
ophthalmologist
field of medicine that focuses on the study of disease related to the eyes
ophthalmology
use of handheld instrument w/ a light, called an ophthalmoscope, to view the interior of the eye
ophthalmoscopy
technician trained in filling prescriptions for corrective lenses
optician
professional trained to examine eyes to correct vision problems & eye disorders
optometrist
measurement of vision, usually to test acuity for prescribing corrective lenses; the process includes the use of an optometer, which measures the range & sharpness of vision
optometry
use of ultrasound frequencies to break up a cataract, which is then aspirated & removed
phacoemulsification
PRK: use of a laser to reshape the cornea in an effort to correct myopia
photorefractive keratectomy
RK: incisions into the cornea to produce a spoke-like effect, which serves to flatten the cornea & correct for myopia
radial keratotomy
repair of a detached retina, in which a portion of the sclera is resected & an implant inserted; the suturing of the implant causes the sclera to buckle slightly
scleral buckling
high-frequency sound waves used to detect problems associated w/ the eye, such as foreign objects, detached retina, etc
sonography
incision into the tendon of an eye’s extrinsic muscle to correct strabismus (crossed eyes)
strabotomy
measurement of intraocular pressure, primarily used to test for glaucoma; an instrument called a tonometer is used for this test
tonometry
surgical removal of the vitreous humor
vitrectomy