What is the lamellar technique?
Concept. Lamellar keratoplasty is an operation in which diseased corneal tissue is removed and replaced by lamellar corneal tissue from a donor. The procedure is performed either to improve vision (optical keratoplasty) or to provide structural support for the cornea (tectonic keratoplasty).
Who invented the femtosecond laser?
Dr. Kurtz
Femtosecond laser technology was first developed by Dr. Kurtz at the University of Michigan in the early 1990s [1] and was rapidly adopted in the surgical field of ophthalmology.
What is deep lamellar keratoplasty?
Deep anterior lamellar keratoplasty (DALK) is a surgical procedure for removing the corneal stroma down to Descemet’s membrane. It is most useful for the treatment of corneal disease in the setting of a normally functioning endothelium.
What is Crescentic lamellar keratoplasty?
Conclusion: Crescentic tuck in lamellar keratoplasty provides good apposition of the donor lenticule and tectonic support to the peripheral thin cornea while preserving the peripheral limbal stem cells. Additionally, there is a significant reduction in the astigmatism, resulting in visual improvement.
What is done in anterior lamellar keratoplasty?
In ALK, the surgeon dissects the cornea into two thin pieces and removes the front, scarred part. A matching area of healthy tissue from a donor cornea is then used to replace the area that was removed.
How is a keratoplasty performed?
Penetrating keratoplasty (PK) a full-thickness cornea transplant. Your surgeon cuts through the entire thickness of the abnormal or diseased cornea to remove a small button-sized disk of corneal tissue. A special instrument is used to make this precise circular cut.
What is superficial lamellar keratectomy?
Superficial Keratectomy is a surgical procedure that removes and smooths the corneal surface. Corneal diseases that are commonly treated by a superficial keratectomy include the following: Anterior Basement Membrane Dystrophy (ABMD) Recurrent Corneal Erosion.
What are the indications of keratoplasty?
CONCLUSIONS. In this study, the leading indications for keratoplasty were keratoconus, bullous keratopathy, corneal scarring, regrafts and stromal dystrophies. A significant increasing trend for descemet’s stripping automated endothelial keratoplasty surgeries was observed in spite of the number of cases.