Ocular Trauma Flashcards
What can cause the eye to be injured?
Blunt trauma
Penetrating trauma
Burns
What test helps in establishing the extent of the injury?
Visual acuity
What do fluorescein drops do?
Identify area of epithelial loss
A teardrop sign is seen on an X-ray of which fracture?
Orbital blowout
An orbital blowout fracture can cause which muscle to become tethered?
Inferior rectus
Where in the eye is uveitis commonest?
Anterior chamber
What is hyphaema?
Blood in the anterior chamber
Which fibres are pulled out of place in lens dislocation?
Zonule fibres
Why is corneal laceration a particular worry?
As it means bacteria could enter the eye
What is sympathetic ophthalmia?
Bilateral granulomatous uveitis caused by trauma in one eye
What should be done if there is suspicion of intra-ocular foreign body?
X-ray
Which is a worse chemical burn - acid or alkali?
Alkali
Why is an alkali burn particularly bad?
As it penetrates the intra-ocular structures
What appearance does the conjunctiva have in limbal ischaemia?
China white
What is the most important step in chemical injury management?
Irrigation - minimum of 2l saline
