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allied chapter 17

eye and ear

QuestionAnswer
the region at the back of the eye where the optic nerve meets the retina is optic disc
the normal adjustment of the lens to bring an object into focus on the retina is accomodation
yellowish region on the retina lateral to the optic disc is the macula
tiny pit or depression in the retina that is the region of clearest vision is the fovea centralis
the bending of light rays by the cornea,lensand fluids of the eye is refraction
point at which the fibers of the optic nerve cross in the brain is the optic chiasm
photoreceptor cells in the retina that make the perception of color possible are the cones
photoreceptor cells in the retina that make vision in dim light possible are the rods
the (blank) is the area behind the cornea and in front of the lens and iris. It contains aqueous humor anterior chamber
the posterior inner part of the eye is the fundus
cranial nerve that carries impulses from the retina to the brain optic nerve
having 2 sides that are rounded,elevated and curved evenly biconvex
condition of pupils of unequal size is anisocoria
pertaining to paralysis of the ciliary muscles is cycloplegic
pertaining to the eyelid palpebral
condition of enlargment of the pupil is mydriasis
condition of narrowing of the pupil is miosis
swelling in the region of the optic disc is papilledema
condition of sensitivity of light photophobia
blind spot, area of darkened vision surrounded by clear vision is scotoma
inflammation of the eyelid is called blepharitis
inflammation of the conjunctiva is called conjunctivitis
inflammation of the tear gland is called dacryoadenitis
inflammation of the iris is called iritis
inflammation of the cornea is called keratitis
inflammation of the white of the eye is called scleritis
inflammation of the retina is called retinitis
prolapse of the eyelid is called blepharoptosis
pertaining to tears lacrimal
pertaining to within the eye is called intraocular
fibrous layer of clear tissue over the front of the eyeball has a defect resulting from trauma or infection is called corneal ulcer
inflammation of the vascular layer of the eye uveitis
condition of dry eyes xerophthalmia
absence of vision in half of the visual field hemianopsia
eye abnormally turns outward is called exotropia
medical doctor who treats diseases of the eye is called ophthalmologist
nonmedical person who can examine eyes and prescribe glasses optometrist
nonmedical person who grinds lenses and fits glasses is called optician
absence of the lens of the eye is called aphakia
eye abnormally turns inward is called esotropia
lazy eye also called amblyopia
farsightedness also called hyperopia
decreased vision at near resulting from old age also called presbyopia
nearsightedness also called myopia
night blindness also called nyctalopia
double vision also called diplopia
defective curvature of the lens and cornea leading to blurred vision astgmatism
in the myopic eye light rays do not focus properly on the.... retina
lacrim/o means tears
dacry/o means tears
kerat/o means cornea
corne/o means cornea
blephar/o means eyelid
palpebr/o means eyelid
cor/o means pupil
pupill/o means pupil
phac/o means lens
phak/o lens
ocul/o means eye
ophthalm/o means eye
scot/o means darkness
ultrasonic vibrations break up the lens and it is aspirated from the eye is called phacoemulsification
test of clearness of vision is visual acuity test
measurement oftension or pressure within the eye tonometry
high energy light radiation beams are used to stop retinal hemorrhaging lasar photocoagulation
a laser removes corneal tissue to correct myopia lasik
intravenous injection of dye followed by photographs of the eye through dilated pupils flourescein angiography
suture of silicone band to the sclera to correct retinal detachment scleral buckle
Created by: chether