Foldable integrated artificial lens with brown iris diaphragm

Abstract

The invention belongs to the field of medical implants, and relates to a foldable integrated artificial lens with a brown iris diaphragm. The foldable integrated artificial lens comprises the iris diaphragm, a central transparent optical area and / or haptics and is characterized in that the optical part of the artificial lens is integrated and formed by one whole material, and the material is a foldable hydrophobic acrylate material. The artificial lens has the advantages that the artificial lens is soft and can be folded and implanted into an eye through a small cut, surgical operation is simple, little postoperative astigmatism is caused, fast healing and fast visual function recovery are achieved, and little postoperative treatment is needed; and the brown iris diaphragm (which is the natural-color iris of Chinese) is used, the eye implanted with the artificial lens looks natural, and the width of the iris diaphragm can be appropriately selected according to the measuring result of the white to white distance of the eyeball.

Description

technical field [0001] The invention belongs to the field of medical implants, and relates to a lens substitute for ophthalmic surgery, in particular to a foldable integrated intraocular lens with a brown iris septum. Background technique [0002] Clinically, due to congenital defects or trauma, etc., patients may have iris defects or aniridia, mainly manifested as photophobia in the affected eye, especially for patients with traumatic monocular aniridia, the symptoms are more obvious, and excessive or irregular pupils are also affect the appearance of the patient. In clinical treatment, colored contact lenses have been used for correction, but they are cumbersome to wear, need to be replaced frequently and are easy to lose. For trauma patients, due to the irregular cornea, it is not very convenient to fit them, especially not suitable for children and the elderly. . For patients with aniridia, pupil diameter > 8 mm, and iris defect range > 120° caused by trauma or c...

AI Technical Summary

Problems solved by technology

[0013] 1) Large body, brittle material, easy to break;

[0014] 2) The incision is required to be large, about 10.0mm, the incision needs to be sutured, and the postoperative corneal astigmatism is severe;

[0015] 3) The optical surface of the intraocular lens with a black iris is separated from the iris with a diameter of 10.0mm, and it is made of hard material and cannot be folded. If there is insufficient space in the anterior and posterior chambers of the eye, the implantation process will easily damage the cornea, posterior capsule or vitreous body ;

[0016] 4) The optical part PMMA and the peripheral black PMMA iris part are not integrated, but connected together. Adverse events often occur during the operation that the optical part and the iris part are separated. The new intraocular lens increases the possibility of tissue damage, causing many unnecessary difficulties and troubles to the operation;

[0017] 5) Due to the instability of the anterior chamber and large fluctuations in intraocular pressure during large incisions, complications are prone to occur: such as severe anterior chamber inflammation; cystoid macular edema; suprachoroidal hemorrhage, postoperative secondary glaucoma, etc.; and Due to many surgical complications, this intraocular lens has been discontinued;

[0019] Due to the many complications of the hard intraocular lens with black iris septum, production has been discontinued, and there is currently no suitable substitute product for solving the photophobia symptoms of patients with iris defects or aniridia. Therefore, there is an urgent need for a suitable Foldable one-piece intraocular lens with brown iris septum for patients with iris defect or aniridia; and the intraocular lens of the present invention can fill this market gap

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