Trauma

Question 1

Where do most eye injuries occur?

Answer 1

At work and home

Question 2

Which stain can be used to make damaged parts of the eye epithelium easier to see?

Answer 2

Fluorescein
-to identify areas of epithelial loss
-disclosing agent combined with anaesthetic
e.g. corneal abrasion
(the abraded area will stain bright green when viewed with a blue light)

Question 3

Triad of anterior uveitis

Answer 3

Redness
Pain
Photophobia

Question 4

Hyphaemia

Answer 4

Blood in the anterior chamber of the eye

Question 5

What usually accompanies optic nerve avulsion?

Answer 5

Vitreous haemorrhage

Question 6

Signs and symptoms of optic nerve damage e.g. following blunt trauma

Answer 6

Signs
Decreased Vision
Decreased color vision (Dyschromatopsia)
Afferent pupillary defect
Visual field deficits

Symptoms
Blurry vision
Scotomas
Decreased color sensation

Question 7

Often leads to double vision and the appearance of a sunken orbit
It is often associated with infra orbital parasthesia

Answer 7

Orbital floor fracture

Question 8

What does a hyphaema indicate?

Answer 8

Indicates that the eye has suffered a significant injury with damage to the intraocular structures
The eys is usually acutely painful especially if the intraocular pressure is elevated

Question 9

How do you treat corneal abrasions?

Answer 9

With antibiotic ointment and firm padding

Question 10

Foreign material under the eye lid

Answer 10

This is called a sub tarsal foreign body

Question 11

Corneal foreign bodies

Answer 11

CFB

-removed with a small cotton tip or a sharp needle (under topical anaesthetic)

Question 12

Are acid or alkali burns worse for the eye?

Answer 12

Alkali burns are worse as they denture the proteins

Question 13

Potential intra-ocular foreign body? (IOFB)

Answer 13

X-ray this!!