METHOD OF PERFORMING PLASTIC SURGERY OF CYSTIC FILTRATION CUSHION Russian patent published in 2023 - IPC A61F9/07 

FIELD: medicine; ophthalmology.

SUBSTANCE: fornical incisions are formed, the cystically altered filtration cushion (FC) is preliminarily excised, separating the sclero-conjunctival adhesions, starting 1 mm from the limbus, capturing the entire altered conjunctiva along the entire width along the limbus. Having retreated 7 mm from the lateral edge of the previously formed lysed superficial scleral flap (PSF) from the side of the hyperfiltration focus, the first fornical incision is made perpendicular to the limbus to a depth of 7 mm towards the fornix. The second fornical incision is made parallel to the first incision at a distance of 2 mm from the opposite lateral edge of the PSF to the same depth. Next, the PSF is excised, after which a new superficial scleral flap (NSSF) is formed 1 mm from the limbus measuring 3 by 3 mm, with the base of the NSSF parallel to the lateral edge of the PSF located at the focus of hyperfiltration. The NPSL is then inverted and the PSF is covered with it, closing the hyperfiltration site. The NPSF is fixed to the sclera with two interrupted sutures. An absorbable drainage implant of 0.1–0.2 ml HealaFlow is inserted under the NPSF, the conjunctiva of the fornix is shifted to the limbus, 2–3 interrupted sutures are placed on the conjunctiva on each of the fornical incisions. The next day after surgery, pneumotonometry is performed. If severe hypotension is detected in the patient, the suture on the conjunctiva is opened at the second fornical incision and the NPSF is additionally fixed to the sclera.

EFFECT: method allows to form a strong filtration cushion in the presence of dysfunction of the cystic-altered zone of antiglaucoma surgery, prevents postoperative hypotension and detachment of the choroid.

2 cl, 2 ex, 1 dwg