METHOD FOR PERFORMING ANTERIOR DEEP LAYER-BY-LAYER KERATOPLASTY IN PATIENTS WITH CORNEAL ULCER COMPLICATED BY DESCEMETOCELE UNDER THE CONTROL OF INTRAOPERATIVE OPTIC COHERENT TOMOGRAPHY Russian patent published in 2021 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to ophthalmology. Anterior deep lamellar keratoplasty is performed in patients with corneal ulcers. The affected corneal tissue is divided and separated from the center to the periphery. When forming a donor graft bed in a corneal ulcer complicated by descemetocele, the recipient's cornea is marked along the border of healthy and affected tissue using a surgical marker. In the intact zone of the limbus, paracentesis is done at 9 or 3 o'clock. The required diameter of the trephine is determined with an ophthalmic compass, the affected corneal tissue, with the exception of descemetocele, is divided into 4-6 sectoral sections, marking them with a marker. Then, with a spatula, cut through all the sectoral sections at their thickness parallel to the descemet membrane (DM), from the center to the periphery. Then the DM is separated from the posterior layers of the stroma to the border of the trepanation zone. After that, a spatula is inserted in turn under each sectoral section of the cornea and dissected along the spatula. During the entire operation, an intraoperative optical coherence tomography (IOCT) system is used.

EFFECT: method allows to reduce the risk of damage to the DM and endothelium, to preserve and restore the integrity and transparency of the cornea.

1 cl, 1 dwg, 2 ex