Pathology of the eye Flashcards
1
Q
What are the four major features of acute inflammation?
A
- vasodilation
- increased blood flow
- increased vascular permeability
- movement of inflammatory cells from blood vessels to site of injury
2
Q
what is the ocular response to inflammation?
A
- redness viral conjunctivitis
- blood vessels in eye dilate
- Rubor
- oedema
- exudate
- lots of cells migrate into tissues (neutrophils)
- discharge
- conjuctival papillae and follicles
- inflammation of posterior segment e.g optic nerve
3
Q
Give an example of a peri-ocular infection?
A
external hordeolum (stye) staph.Aureus
4
Q
what is a pre-septal infection?
A
inflammation remains confined to the soft tissue layers superficial to the orbital septum.
5
Q
what is orbital cellulitis?
A
infection of the soft tissues in the orbit posterior to the orbital septum.
