METHOD FOR PERFORMING COMPLETE CORNEAL STROMECTOMY Russian patent published in 2015 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: cornea is reinforced by a corneal cross-linking. At least 1 month later, a diagnostic-based surgical operation is performed. An optical coherence tomography (OCT) is performed, and a pachymetric corneal chart is used to localise a keratoconus displacement axis; that is ensured by connecting the centre of keratoconus and the optical centre of the cornea; the diameter of the future trephine hole is planned, and an OCT-section is conducted along the keratoconus displacement axis, and the following are plotted on the section: two vertical lines equally spaced from the corneal centre at 1/2 of the diameter of the future trephine hole are drawn; a smaller thickness of the cornea is marked on the section within the trephine section and measured. A trephine section is performed according to this value reduced by 50mcm. An L-hook brought along the trephine incision at the whole depth of the incision in the meridian with the smallest thickness of the cornea; the stroma is locally laminated to form a cannula input. First along the trephine incision, and then through the created input, the section air supply cannula is inserted, advanced in parallel to the Descemet's membrane to the middle of the cornea with the section down; sterile air is supplied to laminate the Descemet's membrane within the trephine incision. The superficial layers of the cornea are instrumentally removed at a depth of the trephine incision. That is followed by performing a paracentesis and releasing a small amount of the intraocular fluid from the anterior chamber. The residual layer of the stroma above the Descemet's membrane is punctured with an insulin needle in the middle, with puncturing in and out, and with lifting the layer on the above needle, it is scattered by means of a blade between the puncture in or out. The residual stroma is removed completely within a circular notch by means of scissors.

EFFECT: method enables providing the stable visual functions.

3 cl