Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"keratoplasty"”.
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Outcomes of penetrating keratoplasty at a tertiary institution in South Africa.
… rates and visual outcomes of penetrating keratoplasty (PKP) in a South African setting. Methods: A retrospective review of 99 penetrating keratoplasties performed at Groote Schuur Hospital, South Africa over a 3-year period between February 2016 and February 2019. Results: The mean age of …
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Development of strategies to improve graft survival and for wider adoption of endothelial keratoplasty techniques
La queratoplastia endotelial (EK) representa un avance transformador en las técnicas de trasplante de córnea, ya que ofrece mejores resultados visuales y una recuperación más rápida en comparación con los procedimientos tradicionales de espesor total. Entre las modalidades de EK, la queratoplastia …
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Deep learning methods for real-time corneal and needle segmentation in volumetric OCT scans
Deep lamellar anterior keratoplasty (DALK) is a promising cornea transplant procedure, which mitigates the risks associated with the commonly used alternative penetrating keratoplasty. In DALK, a surgeon must insert a needle into the cornea to a precise depth and inject an air bubble to separate …
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The management of corneal graft rejection
… to Franz Reisinger6 who also coined the term 11 keratoplasty11 • Reisinger confined his work to rabbits and chickens but most grafts failed either from opacification or sepsis. His work, however, did stimulate debate over the feasibility of keratoplasty, but many were extremely sceptical …
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All-solid-state femtosecond medical lasers and nonlinear laser-tissue interactions
… for mini-invasive refractive surgery and keratoplasty. A funda mental systematical study concerning ultrafast laser tissue interactions is crucial before applying the state of the art laser technology to ophthalmic applications. Porcine cornea samples were treated with three diode pumped …
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AMNIOTIC MEMBRANE TRANSPLANTATION FOR OCULAR SURFACE RECONSTRUCTION IN VETERINARY MEDICINE
… keratitis and in conjunction with penetrating keratoplasty. The objective of our study was to evaluate the effects of amniotic membrane transplantation for reconstruction of the ocular surface in different diseases in dogs, cats and horses. We evaluated the cosmesis and visual function. In our …
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Role of IL-17A and Acaid in the Maintenance of Corneal Immune Privilege
… corneal immune privilege and the outcome of keratoplasty. Previously, the Th17 T cell subset and its pro-inflammatory cytokine, IL-17A had been associated with the pathogenesis of several autoimmune diseases and had been implicated in cardiac, lung, and renal allograft rejections. …
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Robotics and Virtual Reality for Optical Coherence Tomography-Guided Ophthalmic Surgery and Diagnostics
… we focus on deep anterior lamellar keratoplasty (DALK), a promising technique for corneal transplantation, that poses such significant manipulation and visualization challenges that 59% of procedures fail. In DALK, surgeons must insert a needle 90% through the 500 μm cornea without …
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Resultados anatómicos y funcionales de la queratoplastia endotelial DSAEK asistida con láser de femtosegundo comparados con la asistida con microquerátomo en un centro de referencia en Bogotá, Colombia
Introducción: Los dispositivos láser de femtosegundo han sido elogiados por su precisión en la cirugía de córnea; sin embargo, su desempeño en la cirugía de injerto corneal endotelial aún está en desarrollo en comparación con la técnica estándar del microqueratomo. El propósito de este estudio es …
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The Effect of Endothelin-1 on the expression of CDK Inhibitors p21 & p27 in Bovine Corneal Endothelial Cells
Mammalian corneal endothelial cells are considered to be non-proliferative due to the arrest of cells at the G1 phase of the cell cycle. The purpose of this study was to determine whether the down regulation of cyclin dependant kinase inhibitors (p21cip1 and p27kip1) levels by Endothelin-1 (ET-1), …