Keratitis

Question 1

Keratitis describes inflammation of which part of the eye?

Answer 1

Cornea

Question 2

What type of infections can cause keratitis?

Answer 2

1. Bacterial
   - staph aureus
   - psudomonas (contact lens)
2. fungal
3. amoebic
4. parasitic: onchocercal keratitis (‘river blindness’)
5. viral: herpes simplex keratitis

Question 3

What environmental factors can cause keratitis

Answer 3

photokeratitis: e.g. welder’s arc eye
exposure keratitis
contact lens acute red eye

Question 4

Clinical features of keratitis

Answer 4

• red eye
• pain
• photophobia
• foreign body
• gritty sensation
• hypopyon

Question 5

Management of keratitis

Answer 5

• stop using contact lens
• topical antibiotics (quinolones)
• cycloplegic drop for pain relief
  e.g. cyclopentolate

Question 6

Complications of keratitis?

Answer 6

corneal scarring
perforation
endophthalmitis
visual loss