METHOD OF TREATING OPTIC DISC PIT Russian patent published in 2024 - IPC A61F9/07 A61F9/08 A61K35/19 A61P27/02 

FIELD: medicine; ophthalmology.

SUBSTANCE: invention can be used for surgical treatment of optic disc pit. That is ensured by subtotal microinvasive vitrectomy. Posterior hyaloid membrane of the vitreous body is removed. Then, internal limiting membrane (ILM) is mobilized by disposable endovitreal forceps by method of circular "petal" membranorhexis at 270 degrees around foveola, with size of removed membrane 2.5 diameters of optic disc. ILM is separated from the periphery to the center by separate sections along the meridians. ILM flap is left attached to the temporal edge of the disc and covers the optic disc defect. Endolaser coagulation is performed along the optic disc edge from the temporal side. Further, intraoperative exchange of fluid for air is performed through 27 G cannula. 0.05 ml of prepared autologous platelet-rich plasma (PRP) is introduced intravitreal; the distal end of the cannula is placed above the optic disc. Excessive PRP is visually controlled, passively aspirated, and localized in optic nerve disc.

EFFECT: invention provides higher visual acuity and anatomical closure of optic disc pit due to the high content of growth and trophic factors and fibrin, which provides mechanical support by creating three-dimensional networks serving as the basis for cell proliferation and differentiation processes, as well as additional fixation of the retina, due to the formation of a chorioretinal commissure, which interrupts the circulation of fluid into the subretinal space, thereby preventing neuroepithelial detachment or its progression.

1 cl, 2 ex