METHOD OF REHABILITATION OF PATIENTS WITH CORNEAL ENDOTHELIAL DYSTROPHY USING ONE DONOR CORNEA FOR TWO RECIPIENTS Russian patent published in 2023 - IPC A61F9/07 A61F9/08 A61F2/14 

FIELD: medicine; ophthalmology.

SUBSTANCE: preserved donor cornea is mounted on an artificial anterior chamber (AAC) with the endothelium upwards. The cornea ready for work in the AAC is placed under an applanation lens connected to an Alcon Wevelight FS 200 or Ziemer FEMTO LDV Z8 femtosecond laser. After ensuring the centering and complete applanation of the cornea under the control of a preinstalled computer program, the first cut is made in the lamellar plane at a depth of 125 µm, the second is circular, passing from a depth of 125 µm upwards of a given diameter — 10 mm. Next, a radial cut is made in the vertical plane, which divides the donor cornea into two equal parts, the resulting corneal graft after the end of the femtosecond laser in the IPC is placed under an operating microscope and the graft is separated from the donor cornea using a blunt spatula, obtaining a finished graft of the posterior layers of the cornea. After that, a tunnel corneal incision 3 mm wide is performed on the recipient's cornea from the temporal side, paracentesis is performed from the nasal side, an oval descemetorhexis is performed with a size of 7 mm along the horizontal axis and 5 mm along the vertical axis. The finished graft is positioned in Elder's glide with the endothelium up using collet tweezers, the tip of the glide is inserted into the anterior chamber through a corneal tunnel incision. With the help of collet tweezers inserted through the paracentesis of the cornea, the finished graft is taken out into the anterior chamber of the recipient and straightened with an irrigation flow. The operation is completed by the introduction of air or a gas-air mixture for graft adhesion.

EFFECT: method allows to reduce the risk of rejection of donor material and increase the number of rehabilitated patients with Fuchs corneal dystrophy (CD) and pseudophakic bullous keratopathy (PBK).

1 cl, 4 ex