Week 5- The Eyes Flashcards Preview

Nurp 500: Health Assessment > Week 5- The Eyes > Flashcards

Flashcards in Week 5- The Eyes Deck (77)
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1

Causes flashing lights and new vitreous floaters:

Retinal detachment

2

Advanced open-angle glaucoma causes:

Peripheral vision loss

3

One-sides vision loss caused by stroke, trauma, or brain tumor. Need to go to ER

Hemianopsia

4

Degeneration of retina. Can be wet or dry.

Macular degeneration

5

Farsightedness:

Hyperopia

6

Aging vision, farsightedness caused by loss of elasticity of the lens d/t again:

Presbyopia

7

Nearsightedness:

Myopia

8

Central vision loss caused by:

Nuclear cataract, macular degeneration

9

Diplopia:

Double vision

10

Horizontal diplopia caused by:

Palsy of CN III or VI

11

Vertical diplopia caused by:

palsy of CN III or IV

12

Leading cause of visual impairment and blindness in the US?

Primary open angle glaucoma

13

Gradual loss of vision in the peripheral fields that results from loss of retinal ganglion cells axons:

Primary open angle glaucoma

14

Primary open angle glaucoma exam findings:

Pallor and increasing size of the optic cup ( can be more than half the diameter of the optic disc)

15

This persists with one eye closed and suggests a problem with the cornea or lens:

Vertical diplopia

16

Normal double vision:

Physiologic diplopia

17

Near reaction tests CN?

III

18

Estropia is:

Inward deviation of the eye.

19

Exotropia is:

Outward deviation of the eye

20

Exopthalamus is:

Anterior bulging of the eye found in Graves’ disease

21

Black numbers on the ophthalmoscope indicate:

Positive diopter- focus on nearer objects.

22

Red numbers on the ophthalmoscope show:

Negative diopter: focus on objects farther away such as retinal vessels

23

Bi-convex and is used to focus on objects that are closer to the examiners eye such as anterior structures of the eye:

Plus or positive lens

24

Bi-concave and is used to focus on objects that are farther away from the examiners eye such as vitreous and retina:

Negative or minus lens

25

Neither convex nor concave and is used if neither the examiner’s nor the patients eyes have refractive errors (most clear view):

Zero lens (where you start)

26

What hand to what eye to visualize the right eye when using an ophthalmoscope?

Right hand/right eye

27

How far from eye with ophthalmoscope to visualize red reflex?

15 inches

28

What can cause an absent red reflex?

Cataract-lens is opaque
Detached retina
Children: retinoblastoma

29

Retinal arteries appear:

Light red, smaller, light reflex is bright

30

Retinal veins look:

Dark red, larger, light reflex is inconspicuous or absent