| 摘要 |
FIELD: medicine.SUBSTANCE: conjunctival flap is formed. Surface sclera and deep triangular flaps are formed with base to limbus with exposure of ciliary body. 2 scleral channels are formed on each side of triangular flap, perpendicular to them. External end of sclera channels must project beyond bed of surface sclera flap. Two collagen drainages "xenoplast" 0.8-1.2 mm thick, 1.0-1.5 mm wide, 4.0-5.0 mm long, are sutured to formed sclera bed. Length of collagen drainages must not exceed length of sclera flap. Anterior eye chamber is opened by cut along limbus. Iridectomy is performed. Anterior chamber is fully filled with viscoelastic. Ends of two drainages are introduced into anterior chamber, with formation of window in trabeculo-Descemet's membrane. Root of iris must not overlap ends of drainages. Surface sclera flap is laid into place and fixed with sutures.EFFECT: method provides activation of intraocular fluid outflow for long term, formation of flat spilled filtration pillow with strong wall, prevention of scarring of created pathways for outflow without application of antimethabolites due to formation of sclera channels, external end of which lies beyond bed of surface sclera flap, application of collagen drainages without their overlapping by iris root and length which does not exceed length of scleral flap.4 cl, 2 ex |
