Our Services Corneal Transplantation

Corneal Transplantation
We offer all types of corneal transplantation with an option to apply donor tissue from overseas eyebank, thereby greatly reducing the waiting time for surgery.

• Penetrating Keratoplasty
  Penetrating Keratoplasty involves the removal and replacement of all layers of corneal tissues. During the procedure, a circular cutting device is used by surgeon to cut the donor cornea and remove a circular disc of cornea. A second device is then used to remove a similar sized portion of the patient's cornea. The donor tissue is then sewn in place with sutures.
  
  
  
  Penetrating Keratoplasty is now replaced by the technique described below in many situations. It is now reserved for specific disease entity only.
  
  
• Lamellar keratoplasty/Deep Anterior Lamellar Keratoplasty
  During this procedure, the anterior layers of the central cornea are removed and replaced with donor tissues. Endothelial cells and Descemets membrane (and part of the stroma in case of Lamellar keratoplasty) are left in place. This technique is used to treat anterior corneal opacifications and scars.
  
  
• Endothelial Keratoplasty
  This relatively new procedure has revolutionised the treatment of disorders of the innermost layer of the cornea (endothelium).It replaces the patient's endothelium with a transplanted disc of posterior stroma/Descemets/endothelium (DSEK/DSAEK) or Descemets/endothelium (DMEK). Unlike a full thickness corneal transplant, this surgery can be performed with one or no suture. Patients may recover functional vision in weeks to months as opposed to up to a year with full thickness transplants.
  
  The patient's corneal endothelium is removed and replaced with donor tissue. With DSAEK, the donor tissue includes a thin layer of stroma, as well as endothelium, which is commonly 100–150 µm thick. With DMEK only the endothelium is transplanted. In the immediate post-operative period the donor tissue is held in position with an air bubble placed inside the eye (the anterior chamber). The tissue self adheres in a short period and the air is adsorbed by the surrounding tissues.
  
  
• Artificial Cornea
  
  
  The Boston Keratoprosthesis (KPro) is the most widely used artificial cornea or keratoprosthesis. It is a treatment option for corneal disease not treatable with corneal transplant techniques mentioned above or for patients with multiple cornea graft rejections.