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Updated: Jun 5, 2026

Establishing a Porcine Ex Vivo Cornea Model for Studying Drug Treatments against Bacterial Keratitis
Published on: May 12, 2020
Demographic study of expulsive hemorrhages in 3 patients with infectious keratitis
Taiki Oshida1, Yumi Kamura, Mitsuru Sawa
1Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, Ohyaguchi-kamimachi Itabashi-ku, Tokyo, Japan. tai@med.nihon-u.ac.jp
Purpose:
To investigate the demography, causative bacteria, and clinical findings in 3 patients with expulsive hemorrhage.
Methods:
The clinical records of 3 patients (3 eyes), who developed expulsive hemorrhage because of infectious keratitis and were treated at our hospital between December 2006 and January 2008, were investigated retrospectively.
Results:
Three women, older than 70 years, with physical and mental disabilities because of senile dementia were studied. Two were residents at a nursing home. Basic corneal disorders included bullous keratopathy, cicatricial syphilitic keratitis, and traumatic keratitis because of a foreign body. All patients developed expulsive hemorrhage. Two patients underwent enucleation, and 1 underwent bulbar exenteration with sclerocorneal patch for expulsive hemorrhage. Bacterial culture in these cases isolated either Capnocytophaga sp. and penicillin-intermediate resistant Streptococcus pneumoniae or methicillin-resistant Staphylococcus aureus.
Conclusions:
This is the first recorded case of Capnocytophaga keratitis in Japan. Patients with dementia may develop severe ocular complications after infectious keratitis because of their inability to communicate.
