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Pars plana vitrectomy through the Boston Keratoprosthesis type 1
M Harissi-Dagher1, G M Durr, K Biernacki
1Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal, Notre-Dame Hospital, Montreal, Quebec, Canada.
Eye (London, England)
|April 13, 2013
Summary
Pars plana vitrectomy (PPV) through a Boston Keratoprosthesis type 1 (KPro) is feasible for treating vitreoretinal complications. However, this approach, while anatomically successful, often results in poor visual outcomes for patients.
Area of Science:
- Ophthalmology
- Retinal Surgery
- Corneal Prosthetics
Background:
- Boston Keratoprosthesis type 1 (KPro) is used for severe corneal blindness.
- Vitreoretinal complications can necessitate further surgical intervention post-KPro implantation.
Purpose of the Study:
- To evaluate the feasibility of performing pars plana vitrectomy (PPV) through an established Boston KPro type 1.
- To assess the safety and efficacy of PPV in eyes with a permanent KPro.
Main Methods:
- Retrospective analysis of patients who underwent Boston KPro type 1 implantation between 2008 and 2011.
- Inclusion criteria: eyes requiring PPV for vitreoretinal complications after KPro surgery.
- Evaluation of PPV feasibility, anatomical success, and functional outcomes through the KPro.
Main Results:
- PPV was performed in 7% of KPro patients (5 out of 70) for vitreoretinal issues.
- The procedure was feasible without adverse effects on the KPro or cornea.
- Anatomical repair was successful in most cases, but visual acuity remained poor post-PPV.
Conclusions:
- Pars plana vitrectomy through the Boston KPro is a viable surgical option for managing vitreoretinal diseases in these patients.
- Despite anatomical success, significant visual rehabilitation challenges persist after PPV in the setting of KPro.
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