Endothelial Keratoplasty (EK) is a partial thickness corneal transplant that only replaces the inner most layer of the cornea. EK is the preferred way to restore vision when the inner cell layer of the cornea stops working properly from Fuchs’ dystrophy, bullous keratopathy, iridocorneal endothelial (ICE) syndrome, or other endothelial disorders. EK selectively replaces only the diseased layer of the cornea, leaving healthy areas intact. There are two types, including:
- Descemet’s Stripping Automated Endothelial Keratoplasty (DSAEK)
- Descemet’s Membrane Endothelial Keratoplasty (DMEK)
How it works
Your surgeon removes the diseased inner cell layer of the cornea and then implants healthy donor tissue through a small incision. Your surgeon then uses a small air bubble to unfold and position the donor tissue against your cornea. The small incision usually is self healing or closed with a suture or two.
Advantages of endothelial keratoplasty over traditional full thickness transplants:
- The eye remains stronger and less prone to injury
- Visual recovery time is much faster
- Minimal activity restrictions are required
- Minimal change is required in glasses prescription