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The Language of Medicine 9th Edition
Eyes
83
Anatomy
Post-Graduate
02/15/2012

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Cards

Term
Accommodation
Definition
Normal adjustment of the eye to focus on objects from far to near
Term
Anterior Chamber
Definition
Area behind the cornea and in front of the lens and iris
Term
Aqueous Humor
Definition
Fluid produced by the ciliary body and found in the anterior chamber
Term
Biconvex
Definition
consisting of 2 surfaces that are rounded,elevated, and curved evenly, like part of a sphere
Term
Choroid
Definition
Middle, vascular layer of the eye, btwn the retina and the sclera
Term
Ciliary Body
Definition
Structure surrounding the lens that connects the choroid and iris. Secretes aqueous humor
Term
Cone
Definition
Photoreceptor cell in the retina that transforms light energy into a nerve impulse. Responsible for color & central vision
Term
Conjunctive
Definition
Delicate membrane lining the under surface of the eyelids and covering the anterior eyeball
Term
Cornea
Definition
Fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball
Term
Fovea Centralis
Definition
Tiny pit or depression in the retina that is the region of clearest vision
Term
Fundus of the eye
Definition
Posterior, inner part of the eye
Term
Iris
Definition
Pigmented (colored) layer that opens and closes to allow more or less light into the eye
Term
Lens
Definition
Transparent, biconvex body behind the pupil of the eye. It refracts light rays to bring them into focus on the retina
Term
Macula
Definition
Yellowish region on the retina lateral to and slightly below the optic disc. Contains the fovea centralis
Term
Optic Chiasm
Definition
Point at which optic nerve fibers cross in the brain
Term
Optic Disc
Definition
Region at the back of the eye where the optic nerve meets the retina. It is the blind spot of the eye because it contains only nerve fibers,no rods or cones.
Term
Optic Nerve
Definition
Cranial nerve carrying impulses from the retina to the brain
Term
Pupil
Definition
central opening of the eye, surrounded by the iris, through which light rays pass. It appears dark
Term
Refraction
Definition
Bending light rays by the cornea,lens,and fluids of the eye to bring rays into focus on the retina
Term
Retina
Definition
Light-sensitive nerve cell layer of the eye containing photoreceptor cells(rods & cones)
Term
Rod
Definition
Photoreceptor cell of the retina essential for vision in dim light and for peripheral vision
Term
Sclera
Definition
Tough, white outer coat of the eyeball
Term
Thalamus
Definition
Relay center of the brain. Optic nerve fibers pass through the thalamus on their way to the cerebral cortex
Term
Vitreous Humor
Definition
Soft, jelly-like material behind the lens in the vitreous chamber; helps maintain the shape of the eyeball
Term
Aque/o
Definition
Water
Term
Blephar/o
Definition
Eyelid
Term
Conjunctiv/o
Definition
conjunctiva
Term
Cor/o
Definition
Pupil
Term
Corne/o
Definition
cornea
Term
Cycl/o
Definition
Ciliary Body
Term
Dacry/o
Definition
Tears,Tear Duct
Term
Ir/o, Irid/o
Definition
Iris
Term
Kerat/o
Definition
cornea
Term
Lacrim/o
Definition
tears
Term
Ocul/o
Definition
eye
Term
Ophthalm/o
Definition
eye
Term
Opt/o, Optic/o
Definition
eye, vision
Term
Palpebr/o
Definition
eyelid
Term
Papill/o
Definition
optic disc
Term
Phac/o, Phak/o
Definition
lens of the eye
Term
Pupill/o
Definition
pupil
Term
Retin/o
Definition
retina
Term
Scler/o
Definition
sclera, hard
Term
Uve/o
Definition
uvea
Term
Vitre/o
Definition
glassy
Term
Ambly/o
Definition
dull, dim
Term
Dipl/o
Definition
double
Term
Glauc/o
Definition
gray
Term
Mi/o
Definition
smaller, less
Term
Mydr/o
Definition
widen, enlarge
Term
Nyct/o
Definition
night
Term
Phot/o
Definition
photo
Term
Presby/o
Definition
old age
Term
Scot/o
Definition
darkness
Term
Xer/o
Definition
dry
Term
-opia
Definition
vision
Term
-tropia
Definition
to turn
Term
Astigmatism
Definition
Defective curvature of the cornea or lens of the eye
Term
Hyperopia
Definition
Farsightedness
Term
Myopia
Definition
Nearsightedness
Term
Presbyopia
Definition
Impairment of vision as a result of old age
Term
Cataract
Definition
Clouding of the lens, causing decreased vision
Term
Chalazion
Definition
small, hard, cystic mass on the eyelid
Term
Retinopathy
Definition
Dilation of retinal veins, and neovascularization (new blood vessels form in the retina)
Term
Glaucoma
Definition
Increased intraocular pressure results in damage to the retina and optic nerve with loss of vision
Term
Blepharitis
Definition
Inflammation of the eyelid
Term
Chalazion
Definition
Granuloma formed around an inflamed sebaceous gland
Term
Diabetic Retinopathy
Definition
Retinal effects of diabetes mellitus include microaneurysms, hemorrages, dilation of retinal veins, and neovascularization (new blood vessels form in the retina)
Term
Glaucoma
Definition
Increased intraocular pressure results in damage to the retina and the optic nerve with loss of vision
Term
Nystagmus
Definition
Repetitive rhythmic movements in one or both eyes
Term
Flourescein Angiography
Definition
Intravenous injection of flourescein (a dye) followed by serial photographs of the retina through dilated pupils
Term
Slit Lamp Microscopy
Definition
Examination of anterior ocular structures under microscopic magnification
Term
Phacoemulsification
Definition
Ultrasonic vibrations break up the lens, which then is aspired through the ultrasonic probe
Term
Scleral Buckle
Definition
Suture of a silicone band to the sclera over a detached portion of the retina
Term
HEENT
Definition
Head, eyes, ears, nose and throat
Term
IOL
Definition
intraocular lens
Term
IOP
Definition
Intraocular pressure
Term
OD
Definition
Right eye
Term
OS
Definition
Left eye
Term
OU
Definition
Both eyes
Term
PERRLA
Definition
Pupils Equal, Round, Reactive to Light and Accommodation
Term
VA
Definition
visual aquity
Term
VF
Definition
Visual field
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