DMEK, which stands for Descemet’s Membrane Endothelial Keratoplasty, is a partial-thickness corneal transplant. DMEK allows surgeons to only graft the endothelium (the innermost layer of the cornea), allowing for a cleaner surgery and better vision with quicker healing.
DMEK treats conditions such as Fuch’s dystrophy that affect the endothelial, or innermost, layer of the cornea.
DMEK, unlike PK, only replaces the endothelium (the innermost layer of the cornea.) By narrowing down the treatment area, surgeons are able to provide better results and less risk of complication. This procedure allows you to keep healthy tissue and only transplant the unhealthy tissue.
Before you can undergo DMEK, your surgeon will need to secure a healthy donor tissue that matches the tissue that will be removed from your eye. You will be given topical anesthesia. Your surgeon will create small incisions in your cornea. The donor tissue will be stained so your surgeon can see it when inserting it into your eye. Once inserted, the donor tissue will be secured with sutures. Sometimes, an air bubble is used to keep everything in place.
After surgery, you will lay down for 30 to 90 minutes. You will be examined one hour after surgery to ensure everything is still in the right place. You will then be able to go home.
Once home, you will be instructed to stay laying down as much as possible, except to eat and use the restroom. You should lie on your back for as long as the air bubble is in your eye, which is usually around 48 hours.
You should stay well-hydrated and avoid rubbing your eyes. You should also not fly or travel to higher altitudes. You will be put on topical antibiotics for around a week and steroids for one month.
Would you like to know more about DMEK? Be sure to contact Anh Nguyen Ophthalmology with any questions! Call us to schedule your appointment today.