Chapter 12 The Eye

117 terms by auntieann7777

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sclera

outer protective layer of the eye; the portion seen on the anterior portion of the eyeball is referred to as the white of the eye

cornea

transparent anterior part of the sclera, which is in front of the aqueous humor and lies over the iris

choroid

middle layer of the eye, which is interlaced with many blood vessels

iris

the pigmented muscular stucture that allows light to pass through

pupil

opening in the center of the iris

lens

lies directly behind the pupil; it functions is to focus and bend light

retina

innermost layer of the eye, which contains the vision receptors

aqueous humor

watery liquid found in the anterior cavity of the eye

vitreous humor

jellylike substance found behind the lens in the posterior cavity of the eye that maintains its shape

meibomian glands

oil glands found in the upper and lower edges of the eyelids that help lubricate the eye

lacrimal glands and ducts

produce and drain tears

optic nerve

carries visual impulses from the retina to the brain

conjunctiva

mucous membrane lining the eyelids and covering the anterior portion of the sclera

blephar/o

eyelid

conjunctiv/o

conjuctiva

cor/o, core/o, pupill/o

pupil

corne/o, kerat/o

cornea

dacry/o, lacrim/o

tear, tear duct

irid/o, ir/o

iris

ocul/o, ophthalm/o

eye

opt/o

vision

retin/o

retina

scler/o

sclera

cry/o

cold

dipl/o

two, double

phot/o

light

ton/o

tension, pressure

bi-, bin-

two

-opia

vision (condition)

-phobia

abnormal fear of or aversion to specific things

-plegia

paralysis

blepharitis

inflammation of the eyelid

belpharoptosis

drooping of the eyelid; commonly called ptosis

conjunctivitis

inflammation of the conjuctiva; commonly called pinkeye

dacryocystitis

inflammation of the tear sac

diplopia

double vision

endophthalmitis

inflammation within the eye

iridoplegia

paralysis of the iris

iritis

inflammation of the iris

keratitis

inflammation of the cornea

keratomalacia

softening of the cornea

leukocoria

condition of white pupil

oculomycosis

abnormal condition of the eye caused by a fungus

ophthalmalgia

pain in the eye

ophthalmoplegia

paralysis of the eye

photophobia

abnormal fear of (sensitivity to) light

retinoblastoma

tumor arising from a developing retinal cell

retinopathy

(any noninflammatory) disease of the retina

sclerokeratitis

inflammation of the sclera and the cornea

scleromalacia

softening of the sclera

xerophthalmia

condition of dry eye

amblyopia

reduced vision in one eye caused by disuse or misuse associated with strabismus, unequal refractive errors, or otherwise impaired vision; also called lazy eye

astigmatism (Ast)

defective curvature of the refractive surface of the eye

cataract

clouding of the lens of the eye

chalazion

obstruction of an oil gland of the eyelid; also called meibomian cyst

detached retina

separation of the retina from the choroid in back of the eye

emmetropia (Em)

normal refractive condition of the eye

glaucoma

eye disorder characterized by optic nerve damage usually caused by the abnormal increase of intraocular pressure

hyperopia

farsightedness

macular degeneration

a progressive deterioration of the portion of the retina called the macula lutea, resulting in loss of central vision

myopia

nearsightedness

nyctalopia

poor vision at night or in fain light; also called night blindness

nystagmus

involuntary, jerking movements of the eyes

pinguecula

yellowish mass on the conjunctiva that may be related to exposure to ultraviolet light, dry climates, and dust

presbyopia

impaired vision as a result of aging

pterygium

thin tissue growing into the cornea from the conjunctiva, usually caused from sun exposure

retinitis pigmentosa

hereditary, progressive disease marked by night blindness with atrophy and retinal pigment changes

strabismus

abnormal condition of squint or crossed eyes caused by the visual axes not meeting at the same point

sty

infection of an oil gland of the eyelid; also called hordeolum

blepharoplasty

surgical repair of the eyelid

cryoretinopexy

surgical fixation of the retina by using extreme cold (carbon dioxide)

dacryocystorhinostomy

creation of an artificial opening between the tear (lacrimal) sac and the nose

dacryocystotomy

incision into the tear (lacrimal) sac

iridectomy

excision (of part) of the iris

iridotomy

incision into the iris

keratoplasty

surgical repair of the cornea

sclerotomy

incision into the sclera

enucleation

surgical removal of the eyeball

LASIK (laser-assisted in situ keratomileusis)

a laser procedure that reshapes the corneal tissue beneath the surface of the cornea to correct astigmatism, hyperopia, and myopia; a combination of excimer lster and lamellar keratoplasty

phacoemulsification

method to remove cateracts in which an ultrasonic needle probe breaks up the lens, which is then aspirated

PRK (photorefractive keratectomy)

a procedure for the treatment of nearsightedness inwhich an excimer laser is used to reshape (flatten) the corneal surface by removing a portion of the cornea

retinal photocoagulation

a procedure to repair tears in the retina by use of an intense, precisely focused light beam, which causes coagulation of the tissue protein

scleral buckling

a procedure to repair a detached retina; a strip of sclera is resected, or a fold is made in the sclera

trabeculectoomy

surgical creation of a drain to reduce intraocular pressure (used to treat glaucoma)

vitrectomy

surgical removal of all or part of the vitreous humor (used to treat diabetic retinopathy)

fluorescein angiography

(photographic) process of recording blood vessels (of the eye with fluorescing dye)

keratometer

instrument used to measure (the curvature of) the cornea (used for fitting contact lenses)

ophthalmoscopy

visual examination of the eye

optometry

measurement of vision

pupillometer

instrument used to measure (the diameter of) the pupil

pupilloscope

instrument used for visual examination of the pupil

retinoscopy

visual examination of the retina

tonometer

instrument used to measure pressure (within the eye, used to diagnose glaucoma)

tonometry

measurement of pressure (within the eye)

binocular

pertaining to two or both eyes

corneal

pertaining to the cornea

intraocular

pertaining to within the eye

lacrimal

pertaining to tears

nasolacrimal

pertaining to the nose and tear ducts

ophthalmic

pertaining to the eye

ophthalmologist

physician who studies and treats diseases of the eye

ophthalmology (Ophth)

study of the eye

ophthalmopathy

(any) disease of the eye

optic

pertaining to vision

pupillary

pertaining to the pupil

retinal

pertaining to the retina

miotic

agent that constricts the pupil

mydriatic

agent that dilates the pupil

optician

a specialist who fills prescriptions for lenses

optometrist

a health professional who prescribes corrective lenses and/or eye exercises

visual acuity (VA)

sharpness of vision for either distance or near

ARMD

age-related macular degeneration

Ast

astigmatism

Em

emmetropia

IOP

intraocular pressure

Ophth

ophthalmology

VA

visual acuity

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