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Colored intraocular lens

A kind of intraocular lens and colored technology, applied in the direction of intraocular lens, eye implant, etc., can solve problems such as ghosting, dark vision and decreased visual sensitivity, and achieve the effect of correcting refractive errors

Pending Publication Date: 2020-11-24
岳阳爱尔眼科医院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a colored intraocular lens, the purpose of which is to overcome the problems of glare, ghosting, dark vision and decreased visual sensitivity due to changes in light intensity and pupil size after implantation of the intraocular lens

Method used

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  • Colored intraocular lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An implantable colored intraocular lens for vision correction after cataract surgery, with collagen mixture or acrylic ester as the raw material, with a refractive index of 1.45; the intraocular lens is 10.7-13.2mm long, 7.0-7.4mm wide, and has a thickness of 150~300um, the diameter of the effective optical zone is 4.8~6.0mm,

[0023] Such as figure 1 As shown, the colored intraocular lens includes an optical element 1 and a support element 2. The optical element 1 is circular in shape and has a spherical or aspheric surface with concave and convex surfaces, and an average diopter of -5D to 26D. The optical element includes a central colorless transparent region 11, a dark transition region 12 and a peripheral dark opaque region 13, the light transmittance of the dark transition region 12 and the peripheral dark opaque region 13 gradually decreases from inside to outside.

[0024] The diameter of the central colorless and transparent area 11 is 3 mm, and the light tran...

Embodiment 2

[0028] A colored intraocular lens implantable for the treatment of myopia. The intraocular lens is a foldable artificial lens made of collagen mixture or acrylic ester, with a refractive index of 1.45. The length of the intraocular lens is 10.7-13.2mm. The width is 7.0-7.4mm, the thickness is 150-250um, and the diameter of the effective optical zone is 4.9-5.9mm.

[0029] Such as figure 1 As shown, the colored intraocular lens includes an optical element 1 and a support element 2. The shape of the optical element 1 is circular and the surface is an aspherical surface with concave and convex. 5D. The optical element 1 includes a central colorless transparent region 11, a dark transition region 12 and a peripheral dark opaque region 13, the light transmittance of the dark transition region 12 and the peripheral dark opaque region 13 gradually decreases from inside to outside.

[0030] The diameter of the central colorless and transparent area 11 is 3 mm, and the light transmit...

Embodiment 3

[0034] An implantable colored intraocular lens for regulating the luminous flux entering the eye. The intraocular lens is a foldable artificial lens made of collagen mixture or acrylic ester, with a refractive index of 1.45; the length of the intraocular lens is 10.7- 13.2mm, width 7.0-7.4mm, thickness 150-250um, diameter of effective optical zone is 6mm.

[0035] Such as figure 1 As shown, the colored intraocular lens includes an optical element 1 and a support element 2. The shape of the optical element 1 is circular and the surface is an aspherical surface with concave and convex. 5D. The optical element 1 includes a central colorless transparent region 11, a dark transition region 12 and a peripheral dark opaque region 13, the light transmittance of the dark transition region 12 and the peripheral dark opaque region 13 gradually decreases from inside to outside.

[0036] The diameter of the central colorless and transparent area 11 is 3 mm, and the light transmittance is...

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Abstract

The invention provides a colored intraocular lens which comprises an optical element and a supporting element, and the optical element sequentially comprises a central colorless transparent area, a dark color transition area and a peripheral dark color lightproof area from the center to the periphery. According to the colored intraocular lens, the diameter of the colorless transparent area in thecenter is 2.5-3.5 mm, the light transmittance is 95% or above, and the light transmittance of areas beyond 2.5-3.5 mm is gradually reduced from inside to outside, so that the colored intraocular lensnot only controls the diffraction of light, but also effectively controls the influence of cornea on the visual quality when the pupil size is changed; the artificial lens plays a role in similarly controlling the size of pupils, and overcomes the defects of dazzling, ghosting, dim vision and visual sensitivity reduction caused by too dark light and too large pupils of the conventional artificiallens.

Description

technical field [0001] The invention relates to the technical field of ophthalmic medical devices, in particular to a colored artificial lens. Background technique [0002] The lens is an elastic transparent body, located behind the iris pupil and in front of the vitreous body. The lens has the function of refracting light. Usually, the ciliary muscle is in a state of relaxation. The lens is thin and flat under the traction of the suspensory ligament, which can make parallel light rays image on the retina When looking near, the ciliary muscle contracts, the suspensory ligament becomes loose, and the pull on the lens is released. The lens becomes convex by elastic action, and the refraction becomes stronger accordingly. Therefore, the light from nearby objects is sent to the retina at high speed. , a clear image can be obtained. [0003] Intraocular lens, also known as intraocular lens, is an artificial lens implanted in the eye. At present, intraocular lens can be roughly d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16
CPCA61F2/16
Inventor 王瑞平
Owner 岳阳爱尔眼科医院有限公司
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