RU2631053C1 - Method for intraocular lens fixation after its reposition on aphakic eyes without capsular support with iris injury defects - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention can be used to fix the intraocular lens (IOL) after its reposition on the aphakic eyes in the absence of capsular support with iris injury defects. After rotated IOL repositioning, four corneal paracenteses are performed opposite the IOL attachment sites and the optical portion. The threads used for IOL rotation and fixation are tied around the base of the haptic elements and knotted on the sclera. The method allows to fix the majority of existing IOL models.

EFFECT: intraocular lens fixation by the proposed method does not allow the lens to move in the vertical plane and cause trauma to the ciliary body, and accordingly prevents the increase in intraocular pressure and the development of secondary glaucoma.

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Description

The invention relates to ophthalmology, namely to ophthalmic surgery, and can be used to fix an intraocular lens (IOL) after its reposition on aphakic eyes in the absence of capsular support with traumatic defects of the iris.

A known method of reposition and fixation of the IOL in the absence of a lens capsule in the eyes with traumatic defects of the iris (patent RU No. 2506937 of 03/28/2012, prototype), which provides for the reposition of the IOL with two strands held behind the optical part parallel to each other through the flat part of the ciliary body at a distance of 2 mm from the edges of the optical part of the IOL, and the fixation of the threads by a knot on the sclera. This method provides reliable fixation of the IOL in the horizontal plane, but does not prevent its vertical displacement, which can lead to trauma to the ciliary body and other intra- and postoperative complications.

The present invention solves the problem of reliable fixation of the IOL in the eye.

The essence of the invention: perform four paracentesis of the cornea opposite the attachment points of the haptic elements of the IOL and the optical part. After reposition of the IOL, the threads used to rotate and fix the IOL are tied around the base of the haptic elements and knotted on a sclera. The loop thus obtained around the haptic part of the IOL reliably fixes the lens in the eye and does not allow it to move up and down.

The technical result from the implementation of the method is as follows:

- the method is technically simple to implement and allows you to fix most of the existing IOL models;

- fixing the IOL of the proposed method does not allow the lens to move in a vertical plane and cause injury to the ciliary body, and accordingly prevents an increase in intraocular pressure and the development of secondary glaucoma.

The method is as follows. After the necessary examination and anesthesia, two threads are prepared 10: 0 with needles at both ends. Two threads 10: 0 are held with needles at both ends behind the optical part of the IOL perpendicular to the axis of the optical elements. After that, four corneal paracentesis is performed opposite the attachment points of the haptic elements of the IOL and the optical part. Then the needle with the thread is passed through two paracentesis opposite the attachment point of the haptic element of the IOL successively three times under the base of the haptic part of the IOL and above the haptic part of the IOL. The second thread is manipulated in a similar manner through two paracentesis opposite the attachment point of the second haptic element of the IOL. Then the ends of the threads are pulled and knotted on the sclera in the projection of the flat part of the ciliary body.

The invention is illustrated by the following clinical examples.

Example 1. Patient J., 32 years old, a / c No. 1003481

On admission: OD - traumatic aniridia, artifakia, IOL dislocation, partial hemophthalmus. Vis OD - dv. hands on the face.

Objectively: the eye is calm, the cornea is transparent, the anterior chamber is deep.

The patient underwent reposition and fixation of the IOL according to the proposed technique. At discharge: visual acuity with a diaphragm - 0.2 s corr., The position of the IOL is stable.

Example 2. Patient K., 48 years old, a / c No. 1018132

On admission: OS - traumatic aniridia, artifakia, IOL dislocation. Vis OS - 0.01 n / a.

Objectively: the eye is calm, the cornea is transparent, the anterior chamber is deep.

The patient underwent reposition and fixation of the IOL according to the proposed technique.

At discharge: visual acuity - 0.35 s corr., The position of the IOL is correct.

Claims (1)

A method for fixing an intraocular lens (IOL) after its reposition on aphakic eyes in the absence of capsular support with traumatic defects of the iris, involving the use of threads equipped with needles at both ends, and the formation of a node on the sclera at the end of the operation, characterized in that two filaments 10: 0 with needles at both ends behind the optical part of the IOL perpendicular to the axis of the optical element, four corneal paracentesis are performed opposite the attachment points of the haptic elements of the IOL and the optical hour ty, the needle with the thread is successively three times carried out under the base of the haptic part of the IOL and over the haptic part of the IOL through two paracentesis; the second thread is manipulated in a similar way through two paracentesis opposite the attachment point of the second haptic element of the IOL, after which the ends of the threads are pulled and tied with a knot on the sclera