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Flashcards in Terms Deck (32):
1

Amblyopia

Lazy eye. One eye becomes dependent on the other eye to focus. Cannot be corrected with glasses or surgery.

2

Strabismus

Eye misalignment caused by an imbalance in the muscles holding the eye.

3

Anisometriopia

Condition of the eyes in which the eyes have unequal refractive power.

4

Aphakia

Absence of a lens in the eye.

5

Asthenopia

Eye strain

6

Binocular vision

Simultaneous use of the two eyes. Allows for a wider field of vision.

7

Canthus

Where the upper lid meets the lower lid

8

Convergence

Turning both eyes inwards so that they are both aimed toward the near object.

9

Cycloplegia

Paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation or ... A dilated pupil.

10

Diploplia

Double vision.

11

Exopthalmos

Bulging of the eye anteriorly out of the orbit.

12

Floaters

Light spots or streaks and dark moving specks due to vitreous traction on the retinal and solid vitreous material or blood.

13

Hemianopia

A blindness or reduction in vision in one half of the visual field due to damage of the optic pathways in the brain.

14

Hyphema

Blood in the the anterior chamber.

15

Legal blindness

Means central visual acuity of 20/200 or less in the better eye with use of a correcting lens.

16

Limbus

The edge of the cornea, where it joins the sclera. also called limbus corneae.

17

Chemosis

Swelling or edema of the conjunctiva

18

Papilledema

Swelling of the optic disc caused by increased intracranial pressure (ICP)

19

Pterygium

A painless non-cancerous growth of the conjunctiva that lays over the sclera.

20

Pinguecula

Non-cancerous yellowish-brown subconjunctival elevation composed of degenerated elastic tissue; may occur on either side of the cornea.

21

Ptosis

“drooping eyelid“ caused by weakness of the muscle responsible for raising the eyelid, damage to the nerves that control those muscles, or looseness of the skin of the upper eyelids.

22

Miosis

Constriction of the pupil

23

Mydriasis

Dilation of the pupil

24

Nystagmus

is a vision condition in which the eyes make repetitive, uncontrolled movements, often resulting in reduced vision

25

Synechia

an eye condition where the iris adheres to either the cornea (i.e. anterior synechia) or lens (i.e. posterior synechia).

26

Scintillating scotoma

Often is accociated w/ migraine.
usually begins as a spot of flickering light near or in the center of the visual fields, which prevents vision within the scotoma. The scotoma area flickers, but is not dark. The scotoma then expands into one or more shimmering arcs of white or colored flashing lights

27

Emmetropia

Normal state, perfect focus of light rays onto the retina when the ciliary muscles are totally relaxed.

28

Hyperopia

Far-sightedness. Cannot see close objects very well.
Contact or glasses prescription begins with a +

29

Hyperopia complications

Can be a risk factor for glaucoma and lazy eye.

30

Myopia

Near-sightedness. Cannot see distant objects well. Runs in the family, affects 1/3 of the population. The prescription is a negative number.

31

Astigmatism

A misshaped lens that cannot focus light rays properly. May accompany both far-sightedness or near-sightedness.

32

Presbyopia

Old fart eyes
Usually occurs around age 40
The eye gradually becomes less awesome in every aspect than it was previously.