CORNEAL TRANSPLANTATION

Surgery

Colby completed one of the busiest corneal fellowships in the world, where he managed people with all forms of corneal blindness. He is competent in performing full thickness, partial thickness and keratoprosthesis corneal transplantation surgery. Colby is involved in working closely with the corneal fellows at the Royal Victorian Eye and Ear Hospital both in clinics and supervising their operating sessions.  

Full thickness corneal transplant – penetrating keratoplasty

A full thickness corneal transplant is often reserved for patients who have full thickness corneal scaring which limits their vision and cannot be corrected with rigid contact lenses. This involves removing the entire thickness of the cornea and stitched into place a new donor tissue. The most common reason reason for this form of transplant is in patients with keratoconus or following corneal infection. The recovery is often several months and many patients will still require glasses or contact lenses to see after their surgery.   

Partial thickness corneal transplant – deep anterior lamellar keratoplasty

When the inner lining of the cornea is still in tact but vision is limited by scaring in the front 90% of the cornea, a partial thickness corneal transplant may be recommended. In this surgery, the front 90% of the cornea is dissected away from the remaining 10%, which is left in place. A donor cornea is then stitched into place on top of the remaining tissue, which reduced the rate of corneal rejection and improves stability of the transplant. Recovery is often faster than a full thickness corneal transplant, and patients often require glasses or contact lenses after their surgery.  

Endothelial transplant – Descemet’s membrane keratoplasty

The inner lining of the cornea has a number of water pumps which act to clear water from the cornea so that it remains transparent. If these are damaged, it is possible to remove this inner lining and replace it with the donated inner lining that has functioning pumps. The donated inner lining often attached and clears the water from the cornea after 1-2 weeks and improves sight for people suffering from Fuch’s endothelial dystrophy or after complicated cataract surgery. 

Keratoprosthesis surgery – Boston Keratoprosthesis

Keratoprosthesis surgery is reserved for patients who have had multiple full thickness corneal transplants that have failed due to recurrent rejection or other reasons. This is the most invasive form of corneal transplant, which involves creating an implant of donor corneal tissue, a titanium plate and central lens to provide vision. To read about the experience of some of Colby’s patients who underwent this procedure in the United Kingdom, please click here 

Colby completed one of the busiest corneal fellowships in the world, where he managed people with all forms of corneal blindness. He is competent in performing full thickness, partial thickness and keratoprosthesis corneal transplantation surgery. Colby is involved in working closely with the corneal fellows at the Royal Victorian Eye and Ear Hospital both in clinics and supervising their operating sessions.  

Full thickness corneal transplant – penetrating keratoplasty

A full thickness corneal transplant is often reserved for patients who have full thickness corneal scaring which limits their vision and cannot be corrected with rigid contact lenses. This involves removing the entire thickness of the cornea and stitched into place a new donor tissue. The most common reason reason for this form of transplant is in patients with keratoconus or following corneal infection. The recovery is often several months and many patients will still require glasses or contact lenses to see after their surgery.   

Partial thickness corneal transplant – deep anterior lamellar keratoplasty

When the inner lining of the cornea is still in tact but vision is limited by scaring in the front 90% of the cornea, a partial thickness corneal transplant may be recommended. In this surgery, the front 90% of the cornea is dissected away from the remaining 10%, which is left in place. A donor cornea is then stitched into place on top of the remaining tissue, which reduced the rate of corneal rejection and improves stability of the transplant. Recovery is often faster than a full thickness corneal transplant, and patients often require glasses or contact lenses after their surgery.  

Endothelial transplant – Descemet’s membrane keratoplasty

The inner lining of the cornea has a number of water pumps which act to clear water from the cornea so that it remains transparent. If these are damaged, it is possible to remove this inner lining and replace it with the donated inner lining that has functioning pumps. The donated inner lining often attached and clears the water from the cornea after 1-2 weeks and improves sight for people suffering from Fuch’s endothelial dystrophy or after complicated cataract surgery. 

Keratoprosthesis surgery – Boston Keratoprosthesis

Keratoprosthesis surgery is reserved for patients who have had multiple full thickness corneal transplants that have failed due to recurrent rejection or other reasons. This is the most invasive form of corneal transplant, which involves creating an implant of donor corneal tissue, a titanium plate and central lens to provide vision. To read about the experience of some of Colby’s patients who underwent this procedure in the United Kingdom, please click here