SU990221A1 - Eye iris plasty method - Google Patents

Description

(54) METHOD OF PLASTICS OF RAINBOW SHELL

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The invention relates to medicine, namely ophthalmology.

There is a method of plasticizing the iris by closing its defect biologically. ches transplant 1.

However, the known method does not ensure reliable closure of the defect in the iris; postoperative complications are possible.

The aim of the invention is to reduce the complications.

The goal is achieved by the fact that during the implementation of the plastic technique of the iris by closing its defect with a biological graft, the transplan from the middle layers of the sclera is cut out with a base to the limbus, which corresponds in shape to the defect of the iris and fixed to the edges of the iris coloboma.

The method is carried out as follows.

After the formation of a conjunctival flap, an external flap is cut out of the surface layers of the sclera in size larger than the required size, with a base to the limb, 1/3 the thickness of the sclera. Behind the outer one, a previously prepared flap from the middle layers of the sclera is cut out and modeled in accordance with the existing defect in the iris. After opening the anterior chamber with a corneoscleral incision along the limbus, the sclera flap prepared earlier

5 is placed in the lumen of the iris defect and reinforced with 6 knotted sutures from 10: 0 supramid, three on each side to the iris. The graft and iris are straightened with a duster.

Q The suture of the supramid is placed on the corneoscleral incision. Outer scleral flap is laid in its original place and fixed with shvami. Impose a continuous suture on the conjunctiva.

Example. Patient Sh. 19 years old enrolled

15 clinic with a diagnosis: consequence of penetrating injury, corneal scar, secondary plenchat cataract, coloboma of the iris. The acuity of the eyesight of the left eye is light sensation with correct projection. Operation: dissecting the film of the secondary cataract, plastic iris autosclerosis. The course of the operation: cut the conjunctival flap base to the limb, then cut out in layers 2 flap of the sclera - internal and external. The internal flap corresponds to the shape of the defect in the iris (coloboma from 10 to 2 hours). The anterior chamber is opened with a blade, the incision is prolonged with corneal scissors, the film is cut through the secondary cataract, the graft is applied to the iris collar and reinforced with knotted sutures 10: 0. The iris and the graft are straightened. Impose continuous corneoscleral suture. The outer scleral flap is laid into place and sewn. Air into the front chamber. A continuous suture is also applied to the conjunctiva. After 5 months after surgery, the scleral graft retains its former position, its edges are well matched to the edges of the iris. The acuity of the eyesight of the left eye is 0.3 with correction. The proposed method eliminates the possible tissue incompatibility, the processes of rejection and wrinkling of the scleral

of the flap, the postoperative complications are eliminated and the effectiveness of treatment is increased.

Claims (1)

5 Formula of Invention The method of plasty of the iris by closing its defect with a biological graft, characterized in that, with the aim of reducing complications, the graft from the middle layers of the sclera is cut out with a base to the limbus, corresponding in shape to the edge of the iris coloboma. Sources of information taken into account in the examination 1. Fedorov S. N. The case of free homotransplantation of part of the iris. - “Bulletin of Ophthalmology, No. 5, 1976, p. 24-27.