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Results with the Boston Type I keratoprosthesis after Acanthamoeba keratitis
Albert Santos1, Luzia Diegues Silva1, Luciene Barbosa de Sousa1
1Cornea and External Diseases Service, Department of Ophthalmology and Visual Sciences, Paulista School of Medicina, São Paulo Hospital, Federal University of São Paulo, São Paulo, Brazil.
Purpose:
To report the outcomes of implantation of the Boston Type I keratoprosthesis in three patients with Acanthamoeba keratitis (AK), a severe infection that can lead to significant visual loss.
Observations:
Case series reporting three patients with difficult cases of AK that needed multiple corneal transplantations and glaucoma surgeries. All patients were implanted with the Boston Type I keratoprosthesis device. The main outcomes measure were the visual function and anatomical retention after implantation of the Boston Type I keratoprosthesis. All patients retained the device over the long-term and had good visual function. In one patient a retroprosthetic membrane developed and in another patient an epithelial lip developed over the anterior surface of the keratoprosthesis. The visual acuities range from 20/25 to 20/80 in the implanted eyes.
Conclusions And Importance:
The Boston Type I keratoprosthesis resulted in good anatomic and functional results after multiple graft failures after AK.
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