13 - Opth - Trauma - Blunt trauma Flashcards
1
Q
Orbital fracture - whats common? what happens?
A
blow out fracture common
globe forced back, fracture of orbital floor
2
Q
Orbital fracture - what herniates where? consequence?
A
orbital contents into maxillary sinus - inferior rectus tethering, restricts movement
3
Q
What consequence is common in orbital fracture
A
infra-orbital nerve injury - loss of sensation of lower eyelid and cheek
4
Q
retrobulbar haemorrhage - what is it? can lead to? requires what?
A
bleeding into orbital space
progressive compression of ON may lead to blindness
requires immediate surgery
5
Q
signs of retrobulbar haemorrhage
A
severe pain
progressive visual loss and opthalmoplegia
proptosis
RAPD
6
Q
All features that may be seen with blunt trauma - 15
A
extraocular sunconjunctival haemorrhage corneal abrasion hyphaema iridodialysis traumatic recession of iridocorneal angle traumatic mydriasis lens displacement traumatic cataract vitreous haemorrhage posterior vitreous detachment retinal bruising and oedema retinal tears ON damage/evulsion globe rupture
