SU1500294A1 - Method of treatment of the secondary cataracta - Google Patents

Abstract

This invention relates to ophthalmology. The aim of the invention is the prevention of postoperative complications in the treatment of secondary cataract in patients with an implanted artificial lens. To do this, upon implantation of an artificial lens in the projection of the edge of the optical part of the lens, an iris colobo is formed, through which a secondary cataract is dissected. 2 Il.

Description

The invention relates to medicine, namely to ophthalmology, in particular to the treatment of secondary cataracts after implantation of an artificial lens.

The aim of the invention is the prevention of postoperative complications in the dissection of secondary cataracts after implantation of posterior chamber models of artificial lenses.

The method is carried out as follows.

In the first stage, extracapsular cataract extraction is performed with simultaneous implantation of an artificial lens into the posterior chamber of the eye. In this case, an additional iris colostomy is formed, which falls on the edge of the optical part of the artificial lens. Further, in the case of the development of a secondary cataract, the second stage is the dissision of the secondary cataract. For this purpose, means are prescribed to distribute the pupil before the operation to achieve moderate mydriasis, a corneal paracentesis 1 mm from the eye is performed, a microsurgical knife is inserted into the anterior chamber of the eye so that it appears between the optical part of the artificial crystalline lens and the iris shell above and the opaque posterior the lens capsule below and cut through the muddy posterior capsule.

An example. Patient N. The diagnosis of a cataract of the left eye is almost ripe. An extracapsular cataract extraction was performed with implantation of a posterior chamber artificial lens. The operation was performed under local anesthesia. Stages of operation: the conjunctiva was cut off from the limbus and otseparovali towards the equator of the eye block.

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Limbal corneal incision from 10 to 2 h. Extracapsular cataracts were removed. The apertures of the iris root were formed for the supporting elements of the artificial lens and the additional iris collar in the projection of the equator of the optical part of the implantable artificial lens. Then, an artificial lens was inserted into the posterior chamber of the eye, its supporting elements were inserted into the basal colobomas of the iris. The operation was completed by imposing 7 limbapny seams. The mucous membrane was fixed at the limbus with two interrupted sutures at 10 and 2 hours (Fig. 1). Volno was discharged on the 12th day after surgery. Objectively; the left eye is lightly conjunctival injection. The cornea is transparent. The fundus of the eye without pathology. Vision is 0.7.

Later, 8 months after the operation, the patient's vision decreased as a result of the development of secondary cataract. The patient was operated. An operation was performed under local anesthesia - secondary cataract dissection on an artificial eye. Stages of operation: before the operation, prescribed preparations that dilated the pupil to achieve moderate mydriasis. Achievement of corneal paracentesis 1 mm from the limbus. A discretionary knife was inserted into the anterior chamber of the eye, propelled it through the iris colostrum into the 3-chamber chamber, so that the iris and optical

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part of the artificial lens was located above the knife, and muddy posterior capsule - under the knife 1, 2).

Having unfolded the knife's edge downwards, the secondary cataract was dissected from the bottom up, after which the dissection knife was taken out of the eye. The patient was discharged on the 5th day after the operation. Objectively: the eye is calm. The cornea is transparent. The intraocular lens is in the correct position. Behind an artificial crystalline lens a hole is visible in the muddy posterior capsule. Vision at discharge is 0.8. 2 months after discharge, high functions are preserved, vision is 0.9.

This method of treating secondary cataracts has a wide range of indications for the implantation of posterior chamber artificial lenses, providing increased reliability, the ability to restore the visual functions of the eye.

Claims (1)

Claims. A method of treating secondary cataract in patients with an implanted artificial lens by dissecting it with a cutting tool inserted into the posterior chamber through an iris bulb, which, in order to prevent postoperative complications, is formed during the implantation of an artificial crystalline lens in the projection of the edge the optical part of the artificial lens. Fie.2