Eyes-- TEST 1

Question 1

What does the cornea do?

Answer 1

It refracts light and must be transparent; contains many nerve endings.

Question 2

What is the role of the lens?

Answer 2

Provides accommodation for near/far vision; stiffens with age (presbyopia); most comon problem is cataracts

Question 3

What is the retina’s role in vision?

Answer 3

Converts images to neural impulses sent to the brain via the optic nerve.

Question 4

Which cranial nerve controls visual acuity and peripheral vision?

Answer 4

CN II (Optic Nerve) CONNECTS THE EYE TO THE BRAIN

Question 5

Which cranial nerves control eye movement?

Answer 5

CN III, IV, and VI GAZE

Question 6

What chart is used for distance visual acuity testing?

Answer 6

Snellen chart (20 feet)

Question 7

What chart is used for near vision testing?

Answer 7

Rosenbaum chart (14 inches)

Question 8

What does the corneal light reflex test assess?

Answer 8

Symmetry of extraocular muscles

Question 9

What are direct and consensual pupil responses?

Answer 9

Direct: same eye; Consensual: opposite eye

Question 10

What does a red reflex indicate in fundoscopy?

Answer 10

Normal light reflection from the retina

Question 11

How is an ophthalmoscope used for fundoscopic exam?

Answer 11

Follow red reflex to optic disc and macula in a dark room

Question 12

How do bacterial and viral conjunctivitis differ?

Answer 12

Bacterial: yellow/green discharge; Viral: watery and burning

Question 13

What are drussen spots associated with?

Answer 13

Macular degeneration

Question 14

What is the most common pediatric eye cancer?

Answer 14

Retinoblastoma

Question 15

What vision condition occurs with aging lens proteins?

Answer 15

Cataracts

Question 16

What is arcus senilis and what should it prompt under age 40?

Answer 16

A white ring around the cornea; check for hyperlipidemia

Question 17

What visual change is normal in infants?

Answer 17

Red reflex from birth; 20/20 vision by age 6

Question 18

What is anasocoria?

Answer 18

Difference in pupil that is usually genetic and benign NOTE if this is seen in thoe older than 50 consider temporal arteritis

Question 19

What to know about the cornea

Answer 19

Tons of nerve endings= painful if injured; most common problem associated is astigmatism; corneal abrasion needs Wood Lamp evaluation

Question 20

What is scotoma?

Answer 20

A blind spot seen in pregnancy– sign of pre-ecelampsia

Question 21

Which deficit would a patient experience if the oculomotor nerve is damaged due to a stroke?

Answer 21

Incapability to move upper eyelid

Question 22

Which structure would be affected if a patient’s inner eye layer sustained damage from an injury?

Answer 22

Retina

Question 23

Which advice would the nurse provide a patient to handle visual changes during pregnancy?

Answer 23

Switch from contact lenses to glasses

Question 24

Which finding during an infant’s eye examination would be a sign of a congenital abnormality?

Answer 24

Failure to gaze at mother’s face or other objects

Question 25

Which finding is consistent with a preterm infant’s eye examination?

Answer 25

Retinopathy

Question 26

Which finding would the nurse document as abnormal when assessing the lens, sclera, and lacrimal glands?

Answer 26

Enlarged lacrimal glands *NOTE* lacrimal glands are almost never enlarged so always abnormal

Question 27

Patients of which age group would most likely have drussen bodies on their retina?

Answer 27

Older adults (associated with aging)

Question 28

With which cranial nerve damage is the development of strabismus associated?

Answer 28

CN III