T4 - Eye and Vision Assessment (Josh) Flashcards Preview

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Flashcards in T4 - Eye and Vision Assessment (Josh) Deck (51):
1

Eye Refraction:

What are the different types?

Emmetropia (ideal)

Hyperopia (farsightedness)

Myopia (nearsightedness)

Astigmatism

2

Eye Refraction:

What causes Hyperopia (Farsightedness)?

lens does not refract light enough

3

Eye Refraction:

What causes Myopia (Nearsightedness)?

lens overbends the light

4

Pupil:

What is Miosis?

pupil constricted when exposed to increased light or close work, such as reading

5

Pupil:

What is Mydriasis?

pupil dilates when exposed to reduced light or looking at distance

6

Pupil:

--- is constriction

--- is dilation

Miosis

Mydriasis

7

What is it called when eyes are uneven in size?

anisocoria

8

Health Promotion:

What type of food should we promote for good vision?

Fruit

Veggies
- Red
- Orange
- Dark Green

9

Vision Assessment:

--- --- assesses visual acuity.

--- --- assesses near vision

Snellen Chart

Rosenbaum Pocket Vision Screener

10

Vision Assessment:

What does the Ishihara Chart assess?

Color vision

11

What is Arcus Senilis?

a narrow opaque band encircling the cornea, common in old age

***caused by fat deposits

12

What happens to Cornia as we age?

flattens, irregular surface of curve

13

Is yellowing of the lens normal as we age?

yes

14

What is Presbyopia?

diminished ability to focus on near objects as we age

15

As we age, what happens to intraoccular pressure?

increases

16

Diagnostic Tests:

What does a Slit-Lamp Examination do?

magnifies the anterior structures

17

Diagnostic Tests:

What do we do to check for corneal trauma, abrasions or ulcers?

Corneal Staining

18

Diagnostic Tests:

Which test measures Intraoccular Pressure?

Tonometry

***can be attached to the Slit-Lamp Device

19

Diagnostic Tests:

Which test assesses retinal circulation and requires IV Access?

Fluorescein Angiography

20

Diagnostic Test:

Teaching for Fluorescein Angiography

Mydriatic eye drops prior

Fluids afterwards to flush contrast media

Skin may appear YELLOW for few hrs afterwards

Urine BRIGHT GREEN after test

21

Diagnostic Tests:

What is an Electroretinography?

graphs retinal response to light stimulation

22

Diagnostic Tests:

What does a Gonioscopy allow visualization of?

angle where iris meets cornea

23

Diagnostic Test:

What is purpose of Gonioscopy?

determines if Open Angle of Closed Angle Glaucoma

24

Eyelid Disorders:

What is Blepharitis?

inflammed, itchy red, eyelid

Greasy scales on brows and lids

25

Eyelid Disorders:

What is Entropion?

inward turning of lid causing lashes to rub against eye

***requires surgical correction

26

Eyelid Disorders:

What is Ectropion?

outward turning of eyelid

***requires surgery

27

Eyelid Disorders:

--- is inward turning of eyelid

--- is outward turning of eyelid

ENtropion is INward

ECtropion is outward (ek)

28

Eyelid Disorders:

What is term for a Stye?

Hordeolum

29

Eyelid Disorders:

What is a Chalazion?

inflammation of sebaceous gland in eye

30

Eye Disorders:

What is Keratoconjuctivitis Sicca?

Dry Eye Syndrome

changes in tear composition, lacrimal gland dysfunciton or altered tear distribution

31

Eye Disorders:

What drugs can cause Keratoconjuctivitis Sicca?

Antihistamines

Beta Blockers

Anticholinergics

32

Eye Disorders:

What diseases can cause Keratoconjuctivitis Sicca?

RA

Leukemia

Sarcoidosis

Radiation Burn

33

Eye Disorders:

What is treatment for Keratoconjuctivitis Sicca?

Cyclosporine (Restasis)

Artificial Tears

Lubricating Ointment

Surgery

34

Eye Disorders:

What is Trachoma?

chronic, bilateral scarring form of Conjuctivitis

35

Eye Disorders:

What bacteria causes Trachoma?

Chlamydia Trachomatis

***INFECTION CONTROL!!!

36

Eye Disorders:

What are s/s of Trachoma?

tears

photophobia

eyelid edema

37

Eye Disorders:

What is the chief cause of preventable blindness?

Trachoma

- chronic, bilateral scarring form of conjuctivitis

38

Corneal Disorders:

Why does a Corneal abrasion, ulceration or infection need IMMEDIATE treatment?

can cause permanent damage

39

Corneal Disorders:

What meds can be given if Cornea is scratched, ulcerated, or infected?

anti-infective and steroid eyedrops

40

Corneal Disorders:

--- is degeneration of corneal tissue.

Keratoconus

***Corneal Ring Transplant

***Keratoplasty (Corneal Transplant)

41

Eye Donation:

What is requirements to donate eyes?

free from infectious disease or cancer at time of death

42

Eye Donation:

What do you do to protect potential eye donors at time of death?

Elevate HOB 30 degrees

Apply antibiotic eyedrops

Close eyelids and apply small ice pack

43

Cataracts:

--- begins at back of the lens

--- forms in the center of the lens

--- forms in the lens cortex and extends from the outside of the lens to the center.

Subcapsular Cataract


Nuclear Cataract


Cortical Cataract

44

Cataracts:

Signs and Symptoms

Clouding and Blurring of lens

Opacity makes it difficult to see retina

Visual acuity restricted

NO PAIN or eye redness

45

Cataracts:

Risk Factors

Age

Heavy sun exposure

Direct Eye injury

Diabetes

Steroid use

Down Syndrome

46

Cataracts:

What is unique about Cataract Surgery?

done with sound waves

they break up the lens, pieces are sucked out, and the capsule remains largely intact

47

Cataracts:

What is the technical name of Cataract Surgery?

Phacoemulsification

48

Cataracts - Phacoemulsification:

What should we assess for preoperatively?

Medication List

Ability of client to instill eye drops post op

49

Cataracts - Phacoemulsification:

What is Postop care?

Antibiotics give subconjuctivally

Eye is unpatched, discharge usually occures within 1 hr

Dark glasses required

Instill antibiotic-steroid eyedrops

Mild itching is normal

PAIN INDICATES COMPLICATIONS

Reduce IOP

Prevent Infection

Assess for bleeding

50

Cataracts - Phacoemulsification:

What are signs of complications?

Sharp, sudden pain in eye

Bleeding or increased discharge

Lid swelling

Decreased vision

Flashes of light of floating shapes

51

Slide 45

Slide 45