Conjunctivitis Flashcards
1
Q
Define:
A
• Inflammation of the conjunctiva.
o Associated inflammation of the cornea –> keratoconjunctivitis
o Associated eye lid involvement –> blepharoconjunctivitis
2
Q
Aetiology:
A
• Infectious o Viral o Bacterial – commonest: S.aureus, Strep pneum, H. influenzae • Non-Infectious o Allergic o Mechanical/irritative/toxic o Immune-mediated o Neoplastic
3
Q
Risk factors:
A
Wearing contacts
4
Q
Epidemiology:
A
- WORLDWIDE distribution
- Affects any age group
- No gender, ethnic or social preponderance
5
Q
Signs:
A
- Conjunctival injection (i.e. blood shot eyes)
- Dilated conjunctival vessels
- Conjunctival chemosis (swell of the conjunctiva)
- Conjunctival follicles (round collections of lymphocytes appearing as small dome-shaped nodules)
- Conjunctival papillae (associated with allergic immune response)
6
Q
Investigations:
A
Hx and examination
If needed tests then by specialists
7
Q
Symptoms of bacterial conjunctivitis:
A
Unilateral Thick discharge Crusting of the eye Painful Urtheritis or vaginal discharge Reduced vision
8
Q
Symptoms of viral conjunctivitis:
A
Bilateral Painless Watery discharge NO loss of vision Viral flu like symptoms
9
Q
Symptoms of allergic conjunctivitis:
A
Hx of atopy Red eye Watery Itching Sneezing
