Deck 32: Ocular Emergencies and Trauma

Question 1

What is the difference between myopia and hyperopia?

A) Myopia is near-sightedness while hyperopia is far-sightedness
B) Myopia is far-sightedness while hyperopia is near-sightedness
C) Myopia is visual problem related to trauma while hyperopia is an age-related visual problem
D) Myopia is an age-related visual problem while hyperopia is related to trauma.

Answer 1

Myopia is near-sightedness while hyperopia is far-sightedness

Question 2

What part of the eye is specifically responsible for vision in dim light?

A) Iris
B) Rods
C) Cones
D) Pupil

Answer 2

Rods

Question 3

When a patient verbalises that he/she suddenly sees flashes and an explosion of floater or web like substance, what should a nurse suspect?

A) Eye infection
B) Orbital blow
C) Retinal tear/detachment
D) Corneal abrasion

Answer 3

Retinal tear/detachment

Question 4

Which among the following presentations is considered a flag sign that increases triage weighting and urgency for review?

A) Itchy eyes with oedematous eyelids
B) Uniformly red eye with purulent discharge
C) Red eye with severe ocular pain unrelieved by medication
D) Gradual increase of blurring vision for the past few weeks

Question 5

A common opthalmologic drug used to induce ptosis for corneal protection:

A) Lidocaine
B) Botulinum toxin
C) Corticosteroid
D) Mydriatic

Question 6

How do you assess for nerve involvement in eye trauma?

A) Ask the patient to look in all positions of gaze
B) Compare both eyes looking for asymmetry or for globe displacement
C) Palpate eyelids for crepitus or subconjunctival emphysema
D) Compare sensations between cheeks, top lip and front tooth

Question 7

Why is it important to remember that patching should be avoided if the foreign body that came in contact with the eye was a vegetative substance?

A) To prevent risk of fungal growth
B) To prevent risk of bleeding
C) Because it will inflict further pain
D) Because it will aggravate inflammation

Question 8

What should be the initial management in an out-of-the-hospital setting for a patient with hyphaema?

A) Saline irrigation of the eye
B) Restricting patient movement and eye protection
C) Administration of oral pain medication
D) Ice pack application

Question 9

Why is it important to manage vomiting for patients with globe rupture injury?

A) To avoid decrease of blood pressure from fluid loss
B) To prevent dehydration
C) To minimise intraocular pressure
D) To manage discomfort

Question 10

It is important to check the pH after ceasing the irrigation of the eye as management for chemical burn injury. Choose all of the correct procedures included in checking the pH: (Select all that apply.)

A) Check pH 1-5 minutes after irrigation
B) Use urine pH test strips to test tear pH
C) Insert small strips into both the lower lid fornices
D) Leave the small strips on lower lid fornices until wet
E) All are correct