Chapter 17: Eye Pathology Flashcards Preview

Medical Terminology > Chapter 17: Eye Pathology > Flashcards

Flashcards in Chapter 17: Eye Pathology Deck (24):
1

astigmatism

defective curvature of the cornea or lens of the eye

2

hyperopia
(hypermetropia)

farsightedness

3

myopia

nearsightedness

4

presbyopia

impairment of vision as a result of old age

5

cataract

clouding of the lens, causing decreased vision

6

chalazion

small, hard, cystic mass (granuloma) on the eyelid

7

diabetic retinopathy

retinal effects of diabetes mellitus include microaneurysms, hemorrhages, dilation of retinal veins and neovascularization (new blood vessels form in the retina)

8

glaucoma

increased intraocular pressure results in damage to the retina and optic nerve with loss of vision

9

hordeolum (stye or sty)

localized, purulent, inflammatory staphylococcal infection of a sebaceous gland in the eyelid

10

macular degeneration

progressive damage to the macula of the retina

11

nystagmus

repetitive rhythmic movements of one or both eyes

12

retinal detachment

two layers of the retina separate from each other

13

strabismus

abnormal deviation of the eye

14

fluorescein angiography

intraveinous injection of flourescein (a dye) followed by serial photographs of the retina through dilated pupils

15

ophthalmoscopy

visual examination of the interior of the eye

16

slit lamp microscopy

examination of anterior ocular structures under microscopic magnification

17

visual acuity test

clarity of vision is assessed

18

visual field test

measurement of the area (peripheral and central) within which objects are seen when the eyes are fixed, looking straight ahead without movement of the head

19

enucleation

removal of the entire eyeball

20

keratoplasty

surgical repair of the cornea

21

laser photocoagulation

intense, precisely focused light beam (argon laser) creates an inflammatory reaction that seals retinal tears and leaky retinal blood vessels

22

LASIK

use of an excimer laser to correct errors of refraction (myopia, hyperopia, and astigmatism)

23

phacoemulsification

ultrasonic vibrations break up the lens, which then is aspirated through the ultrasonic probe

24

scleral buckle

suture of a sillicone band to the sclera over a detached portion of the retina

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