Eye/Ear- Unit 5 Flashcards Preview

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Flashcards in Eye/Ear- Unit 5 Deck (74)
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1

What happens with a refraction error?

The eyeball is shortened or elongated - it's doing something wrong.

2

Hyperopia - def

farsightedness (can't see near)

3

Myopia - def. What age?

nearsightedness (can't see far) Up to age 30 is normal.

4

Presbyopia - def. What age?

bifocals (asymmetrical corneal surface) - typically after the age of 40. It's basically farsightedness just for older people.

5

Refraction - def

how the light gets bent.

6

Cataracts - normal age ___ and up.

60.

7

Macular Degeneration - normal age ___ and up.

65

8

Astigmatism - def

asymmetrical infraction (light focused in different areas)

9

What are some eye changes associated with aging?

Arcus senilis (hazy white ring around the cornea), decreased corneal transparency, decreased ability to tolerate glare, decreased night vision and color vision, decreased eye muscle ton, and dry eye (might need eye drops!)

10

What are some assessment questions we ask for the eyes?

Onset, duration, cause, treatment of problem

11

What are two of the most common eye problems?

Visual changes and eye pain (ask questions about the kind of pain, etc.)

12

What are some eye history questions?

Family history, psychosocial history (drugs, chemicals, fumes, lifestyle), past medical history (diabeetus, HTN, asthma, CV problems), past eye history, etc.

13

What's the ishihara chart?

Colorblindness, where there's a bunch of dots and a different color in the middle and you say what that thing is.

14

Legal blindness - best acuity with correction is __/__ or less OR widest diameter of visual field no greater than __ degrees.

20/200 ---- 20 degrees.

15

Totally blind vs. functionally blind - differences?

Totally = can't see any light at all.

Functionally blind = can see some light.

16

Unilateral blindness - def

Blind in one eye.

17

Bi-temporal hemianopsia - def

Blind in the outer half of both eyes.

18

Right homonymous hemianopsia - def

Blind in the right halves of the eye.

19

Left homonymous hemianopsia - def

blind in the left halves of the eyes.

20

Diplopia - def

Double vision.

21

Photophobia - def

Discomfort with exposure to light.

22

Floaters - def

Small black dots seen against a light background.

23

Photopsias - def

flashing lights, halos around lights.

24

Dyschromatopsias - def

Abnormal color vision.

25

Nyctalopia - def

Night blindness.

26

Hemeralopia - def

day blindness.

27

Does diabetes put you at great risk for visual changes?

YES

28

should older patients with visual problems have adequate, non-glare lighting in their rooms?

YES

29

What is blepharitis?

Inflamed, itchy and red eyelid. Greasy scales on brows and lids. You have decreased tear formation with this!

30

Entropion - def

eyelid growing in.