Related Experiment Video
Updated: Dec 23, 2025

07:24
Intravitreal Injection and Quantitation of Infection Parameters in a Mouse Model of Bacterial Endophthalmitis
Published on: February 6, 2021
12.5K
Pasteurella multocida-induced endophthalmitis after a cat scratch
Yoshihito Mochizuki1, Hiroto Ishikawa1, Aki Sato1
1Department of Ophthalmology, Hyogo College of Medicine, Nishinomiya 663-8501, Japan.
American Journal of Ophthalmology Case Reports
|April 24, 2020
Summary
A cat scratch caused a rare eye infection called Pasteurella multocida endophthalmitis in a young girl. Prompt antibiotic treatment led to a full vision recovery.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Microbiology
Background:
- Ocular trauma from animal scratches can lead to severe intraocular infections.
- Pasteurella multocida is a common bacterium found in the oral flora of cats and dogs.
Observation:
- A 10-year-old Japanese girl presented with acute endophthalmitis following a cat scratch to the right eye.
- Symptoms included a red eye, pain, and blurred vision.
- Ocular examination revealed a perforating injury.
Findings:
- Surgical intervention (lensectomy and vitrectomy) was performed within 4 hours of presentation.
- Vitreous humor culture identified Pasteurella multocida as the causative pathogen.
- Intravenous and topical ampicillin therapy was initiated.
Implications:
- Early identification of the pathogen and targeted antibiotic therapy are crucial for preventing vision loss in post-traumatic endophthalmitis.
- This case highlights the potential for Pasteurella multocida to cause severe ocular infections after seemingly minor trauma.
- Prompt surgical and medical management can lead to favorable visual outcomes.

