METHOD FOR FORMING INTRASTROMAL POCKET FOR IMPLANTATION OF KERATOPROSTHESIS USING OPTICAL COHERENCE TOMOGRAPHY OF ANTERIOR SEGMENT OF EYE AND VISCOELASTIC Russian patent published in 2023 - IPC A61F9/07 

FIELD: medicine; ophthalmology.

SUBSTANCE: intrastromal pocket (ISP) is formed for implantation of the keratoprosthesis, the area where the ISP is located is marked, and the keratoprosthesis support plate is implanted into the ISP. Coagulation of newly formed vessels of the vascular cataract is carried out in the projection of cutting out the ISP. The keratoprosthesis is placed on the vascular thorn of the cornea, centered, and the ISP zone is marked around it using a medical marker. Next, an incision is made in the temporal area of the ISP markings, corresponding to the dimensions of the selected keratoprosthesis model, then, using a delamination device under the control of intraoperative optical coherence tomography (iOCT), the vascular lesion is dissected 3 mm from the incision site towards the nasal area of the ISP markings. After that, a cohesive viscoelastic is injected into the dissected area of the vascular thorn, which divides the vascular thorn into the upper and lower walls, creating a cavity between them. Next, the vascular thorn continues to be dissected and the ISP is formed under iOCT control, and as the cohesive viscoelastic comes out of the ISP in the area of the incision, it is additionally introduced into the ISP. After cutting out the ISP, the keratoprosthesis support plate is implanted and the keratoprosthesis implantation area is sutured with interrupted sutures.

EFFECT: method allows to control the depth of manipulation with instruments in the thickness of the vascular cataract, which reduces the risk of protrusions of the keratoprosthesis.

1 cl, 1 ex