Ch 10/11 Flashcards
Blephar/o
Eyelid
Core/o
Pupil
Cycl/o
Ciliary muscle
Dacry/o
Tear or duct
Dipl/o
Double
Glauc/o
Gray
Kerat/o
Cornea
Nyctal/o
Night
Papill/o
Optic disk
Phac/o
Lens
Presby/o
Old age
Uve/o
Vascular
Vitre/o
Glassy
-opia
Vision
-tropia
To turn
Three layers of eye
Sclera- outermost, white if eye, anterior is cornea
Cornea- clear, bends light rays
Choroid- middle, blood
Iris
Part of choroid, colored portion, smooth muscle that changes size of pupil
Pupil
Part of choroid, opening in center, allows light to enter eyeball
Lens
Behind iris, attached to ciliary body
Ciliary body
Pulls on edge of lens, changes shape of lens so it can focus on retina
Ambly/o
Dull or dim
Retina
3rd layer, contains sensory receptor cells that detect light rays
Rods
Part of retina, active in dim light, see gray tones
Cones
Part of retina, active only in bright light, color vision
Macula lutea
Are of retina where image forms
Fovea centralis
Depression in center or macula lutea with high number of cones and point of clearest vision
Optic disk
Point where optic nerve leaves eyeball
Aqueous humor
Eatery fluid between cornea and lens
Vitreous humor
Semi solid gel between lens and retina
Conjunctiva
Mucous membrane that forms continuous covering on underside of each eyelid, protects
Lacrimal gland
Located under out upper corner of rah. Eyelid, produces tears
Lacrimal ducts
Located in inner corner of eye smoker, collects tears, drains into nasolacrimal duct and into nasal cavity
Plasty
Surgical repair
Ectomoy
Removal
Plegia
Paralysis
Otomy
Incision
Malgia
Eye pain
Plegia
Weakness
Rrhagia
Paid bleeding
Pathy
Disease
Pexy
Surgical repair
Kerato conjunctivitis sicca (KCS)
Dry eyes
Hyperopia
Image comes into focus behind retina; far sightedness
Myopia
Image comes into focus in front of retina, near sightedness
Cataract
Damage to lens causing it to become cloudy
Glaucoma
Atrophy in optic nerve
Hordeolum
Purulent infection of sebaceous gland of eyelid, sty
Enucleation
Surgical removal of eyeball
EOM
Extra ocular movement
IOP
Intraocular pressure
OD
Right eye
OS
Left eye
OU
Both eyes
Aur/o
Ear
Myring/o
Eardrum
Saloing/o
Eustachian tube
-cusis
Hearing
-otia
Ear condition
Vestibulococchlear nerve
Carries hearing and balance info to brain
Eustachian tube
Connects nasopharynx with middle ear, opens with each swallow and equalized pressure
Labyrinth
Contains sensory organs of inner ear, cavity within temporal lobe
Conductive hearing loss
Disease or malformation of outer or middle ear, all sound is weaker and muffled
Sensorineural hearing loss
Damage or malfunction of inner ear or cochlear nerve, sounds are distorted because nerve impulse is incorrect
OE otitis externa
External ear infection, often by fungus
OM otitis media
Infection is middle ear
AD
Right ear
AS
Left ear
AU
Both ears