View clinical trials related to Corneal Transplantation.
Filter by:Currently, no demographic and surgical results comparing different donor cornea sources were available in Taiwan. National Taiwan University Hospital (NTUH), as one of the largest tertiary medical centers in northern Taiwan, is now in charge of a big part of intense care for patients receiving corneal transplantation. With detailed medical record done of these patients during care in the ward and out-patient clinic, the investigators are competence for this meaningful program.
Corneal transplant is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft) in its entirety (penetrating keratoplasty) or in part (lamellar keratoplasty). One type of lamellar keratoplasty is DSAEK (Descemet's Stripping Automated Endothelial Keratoplasty), where only the damaged posterior section of the cornea is replaced. The purpose of this study is to investigate how immediate postoperative positioning of the patient affects the dislocation rate of the corneal graft. Since this is a new surgical method, little scientific documentation has been published in this area.
The purpose of this study is to evaluate the stability of artificial cornea manufactured by Aurolab and to assess its visual outcomes.
The purpose of this study is to determine whether the surgical outcomes in patients undergoing Descemet's Stripping Endothelial Keratoplasty (DSEK) are improved with the use of an insertion device over the traditional forceps insertion method.
To compare intraocular pressure (IOP) measured by the Reichert Ocular Response Analyzer (ORA), Pascal dynamic contour tonometer (DCT) and Goldmann applanation tonometer (GAT) in eyes after Penetrating Keratoplasty (KPL)
Compare the corneal penetration of levofloxacin 1.5% and moxifloxacin 0.5% in patients undergoing penetrating keratoplasty (PK)
Hypothesis: 1% sodium hyaluronate (Healon), applied at end of surgery to the surface of a corneal transplant will not shorten graft reepithelialization time when compared to coating with nothing. We also wish to measure and compare visual acuity in this immediate post operative period. We also wish to assess the safety of using this agent on the epithelium post-operatively. We will recruit 50 high risk patients (see inclusion criteria) here at the University of Virginia to randomly receive nothing or sodium hyaluronate (Healon) on the ocular surface at the end of surgery, and follow time to reepithelialization of the corneal transplant grafts.
This study will evaluate the use of LX201 to prevent future graft rejection episodes and/or graft failure in patients who have undergone corneal transplantation and who have recently experienced a rejection episode due to an immune response.
The purpose of this prospectively randomized multicentre study was to prove the efficacy and safety of mycophenolate mofetil (MMF) to preventing graft rejection and improvement of clear graft survival following high-risk keratoplasty. The patients of the MMF group receive MMF orally 2x1 g daily for 6 months. Endpoints were immune reaction free and clear graft survival and the occurence of side-effects.
Most high risk keratoplasties are currently performed under systemic immunosuppression. Immunosuppressants are currently either Cyclosporine A or mycophenolate mofetile, administered for around 6 months. Due to potentially severe adverse effects, new immunosuppressive exerting less side effects would be desirable. Basiliximab is a monoclonal, chimeric antibody, targeted specifically against the Interleukin-2-Rezeptor from activated T-cells. This agent is known to specifically inhibit T-cell proliferation upon intravenous application only twice following transplantation. Basiliximab has already been demonstrated effective in kidney transplantation. This investigation is a prospective, randomized clinical trial on orthotopic, high-risk penetrating keratoplasty. Basiliximab is evaluated against systemic Cyclosporine A. Primary endpoint is graft rejection. Secondary endpoint is clear graft survival.