bacterial keratitis
Last reviewed 01/2018
Bacterial infection of the corneum usually follows injury.
Common causative organisms include (1,2):
- coagulase-negative staphylococci
- pseudomonas aeruginosa
- corynebacterium spp.
- staphylococcus aureus
- streptococcus spp
- Mycobacteria also has been isolated (3)
Infection with ulceration are accompanied by:
- gritty pain
- photophobia
- lacrimation
- blurred vision
Corneal oedema is seen as greyness or opacity.
Severe keratitis is associated with large diameter lesions, infiltration of stroma, and inflammation of the anterior chamber (4).
Fluorescein staining will demarcate any areas of ulceration.
The eye should be inspected thoroughly for the presence of a foreign body.
Reference:
- Eye Contact Lens. 2007 Jan;33(1):45-9.
- Clin Experiment Ophthalmol. 2006 Jan-Feb;34(1):44-50.
- Ophthalmologe. 2007 Jan;104(1):9-14
- J Fr Ophtalmol. 2007 Apr;30(4):423-30.
investigations for microbial keratitis