When is a corneal transplant necessary?｜Taipei City Hospital Zhongxing Branch скачать в хорошем качестве

When is a corneal transplant necessary?｜Taipei City Hospital Zhongxing Branch

When is a corneal transplant necessary? If corneal healing is unsuccessful, and the newly formed corneal epithelium repeatedly heals and then breaks down, a condition known as recurrent corneal erosion (RCE) can develop. This often occurs upon waking, as reduced tear production during sleep increases friction between the eyelids and cornea, leading to repeated injury. Surgery is sometimes needed to remove the abnormal corneal epithelium. Different surgical approaches may be used: Phototherapeutic Keratectomy (PTK): PTK uses a laser to resurface the cornea. It involves removing the corneal epithelium (to a depth of 50-60μm) and smoothing the underlying tissue (to a depth of 8-10μm), reconstructing the foundation for proper healing and restoring a smooth corneal surface. Amniotic Membrane Transplantation: Amniotic membrane serves as a biological bandage, acting like a thin, transparent dressing over the injured eye. It helps prevent infection and promotes healing by providing growth factors and reducing inflammation. Corneal Transplant Surgery: This procedure involves replacing the diseased or damaged cornea with a healthy donor cornea. Under local anesthesia, the surgeon removes the affected corneal tissue using a circular trephine and sutures the donor cornea in place. Because the cornea is avascular (lacks blood vessels), corneal transplants have the highest success rate of any organ transplant. However, factors like neovascularization (new blood vessel growth in the cornea) and other eye diseases can reduce the success rate. With proper post-operative care and medication, the chances of a successful outcome are generally very high. Corneal transplants can be either full-thickness (penetrating keratoplasty) or partial-thickness (lamellar keratoplasty, including DALK and endothelial keratoplasty), each with varying tissue replacement, effects, and risks. ► Watch the full video with Dr. Tsai: https://presurg.cc/cDYlPQ ► Learn more about corneas: [How long does it take for a corneal injury to heal? Corneal transplant, keratoconus, symptoms, treatment explained] https://presurg.cc/NDYlVr ► Subscribe to PresurgMedia: https://presurg.cc/Taxo2K #cornea #cornealtransplant #DrTsaiYiLun #keratoconus #cornealdonation #amnioticmembranetransplantation Find more information about surgeries: ⭐ PresurgMedia Website｜https://presurg.cc/UaLLoS ⭐ Line｜https://presurg.cc/PaLLgN ⭐ Facebook｜https://presurg.cc/BaLLPL ⭐ Instagram｜https://presurg.cc/YaLLPm ＊The above text is excerpted from the PresurgMedia website. ＊Unauthorized reproduction, modification, distribution, re-production, transcription, or linking of the whole or part of the content of this channel for other commercial purposes is prohibited.