Más contenido relacionado La actualidad más candente (20) Más de Rawalpindi Medical College (20) Keratitis1. DR. ALI RAZA
Associate Professor
Head of Department Ophthalmology
Holy Family Hospital Rawalpindi
7. BACTERIAL KERATITIS
CLINICAL FEATURES:
Certain bacteria produce characteristic corneal
response.
1- Staph. aureus and Strep. pneumoniae:
Oval, yellow-white, densely opaque stromal
suppuration
clear cornea
16. BACTERIAL KERATITIS
MANAGEMENT:
Bacterial corneal ulcer is a sight-
threatening condition demanding
Identification of causative organism
Eradication
Hospitalization
17. MANAGEMENT:
Therapy is divided into:
Sterilization phase
Healing phase
18. MANAGEMENT:
1- CHOICE OF ANTIBIOTICS:
Standard combined therapy with aminoglycosides
and cephalosporins.
Monotherapy with fluoroquinolone
20. MANAGEMENT:
3- INSTILLATION OF TOPICAL ANTIBIOTICS:
hourly intervals for first five days
2 hourly if favourable response
Gradually taper and discontinue
24. MANAGEMENT:
8- CAUSES OF FAILURE TO RESPOND:
Wrong diagnosis by inappropriate cultures
Wrong treatment by inappropriate antibiotics
Drug toxicity preventing corneal healing
30. OTHER TYPES OF KERATITIS
Acanthamoeba keratitis
Interstitial keratitis
- luetic interstitial keratitis
- cogan syndrome
Infectious crystalline keratopathy
42. HERPES SIMPLEX KERATITIS
DENDRITIC ULCER
Signs in chronological order:
- opaque cells in punctate or stellate pattern
- linear branching ulcer stains with fluorescein
- anterior stromal infiltrates
- large epithelial defect (amoeboid configuration)
- pseudodendrites in healing phase
48. CORNEAL ECTASIAS
1- KERATOCONUS
- conical cornea
- central or paracentral stromal thinning
- apical protrusion
- irregular astigmatism
- presents with impaired vision
- oil droplet reflex
- Munson sign
52. 2- KERATOGLOBUS
- rare condition
- oval keatoconus early on
- later protrusion and thinning of entire cornea
3- PELLUCID MARGINAL DEGENERATION