News breaking procedure
The Intralase femtosecond laser provides surgeons with the ability to make very precise incisions in the cornea and these can be combined in a multitude of ways to enhance penetrating keratoplasty or full thickness graft surgery.
Traditionally a circular blade or trephine is used to mechanically cut a circular incision in both donor and patient. The donor cornea is then sticched into the host. With the Intralase laser, we can create "tongue and grooved" patterns to ensure a good fit without any slippage. This ensures good wound apposition and theoretically should reduce astigmatism. The laser creates a wound reaction which also creates good adhesion allowing earlier stitch removal.
Read the article by Sheraz Daya and Marcela Espinosa in Cataract and Refractive Surgery Today- Europe
Schematic showing the "Mushroom" geometric incision
on both donor and host
Scanning electron microscopy showing the "Zig Square"
pattern developed by Sheraz Daya, Medical Director,
Centre for SIght
The Daya Zig Square notice the perfect alignment of
graft to host and the visible Zig Square geometry where
the clear graft meets the cloudy host
Crystal clear graft 3 months following surgery
|
