Conjunctivitis Flashcards
1
Q
What are the causes of conjunctivitis?
A
- Viral (adenovirus, herpes simplex and herpes zoster opthalmicus)
- bacterial ( staphylococcus epidermis, staphylococcus aureus, haemophilus influenzae)
- Allergic e.g. pollen
- chlamydia
- Toxic reaction
2
Q
What are the viral causes of conjunctivitis?
A
- adenovirus
- herpes simplex
- herpes zoster opthalmicus
3
Q
What are the bacterial causes of conjunctivitis?
A
- staphylococcus epidermis
- staphylococcus aureus
- haemophilus influenzae
4
Q
What are the symptoms of conjunctivitis?
A
- Red eye
- Pain (irritation/discomfort)
- discharge
- Photophobia
- visual acuity norma
5
Q
what are the signs of conjunctivitis?
A
- dilated conjunctival vessels
- oedema of the conjunctiva
- tender pre-auricular lymph nodes
- presence of papillae and follicles
6
Q
What are the differentials of conjunctivitis?
A
- Uveitis
- Closed angle glaucoma
- Keratitis
- Scleritis / episcleritis
- foreign body
- trauma
7
Q
What is the treatment of bacterial vs viral conjunctivitis?
A
- Bacterial / chlamydia = Chloramphenicol
- Viral = supportive (cool compress, artificial tears)
- Allergic = mast cell stabiliser (sodium cromoglicate)
