Simulation eye

A technology for simulating eyes and shells, applied to simulating eyes. field, it can solve the problems of poor optical axis stability and achieve the effects of strong light penetration ability, low power consumption and high precision

Active Publication Date: 2016-05-04
THE EYE HOSPITAL OF WENZHOU MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The applicant of the present application found that when implementing the above Chinese patent application, althoug

Method used

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  • Simulation eye

Examples

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Embodiment 1

[0025] use as figure 1 In the simulated eye shown, the inner diameter of the cylindrical shell is 7mm, the length is 7.5mm, the radius of curvature of the artificial cornea and the artificial eye fundus is 9.5mm, the thickness of the insulating ring is 1mm, and the side of the insulating ring close to the artificial cornea is at a distance from the artificial eye. The distance between the inner surface of the cornea is 2.5 mm, and the distance between the side of the insulating ring close to the artificial eye fundus and the inner surface of the artificial eye fundus is 3.5 mm. The artificial cornea is made of glass, the insulating ring is made of conventional plastic, and the material of the hydrophobic dielectric layer is parylene. The non-polar liquid is monobromododecane, and the polar liquid is 3% by mass sodium chloride aqueous solution. The interface between the non-polar liquid and the polar liquid is near the edge of the insulating ring. The entire simulated eye is ...

Embodiment 2

[0030] use as figure 1 In the simulated eye shown, the inner diameter of the cylindrical shell is 7mm, the length is 7.5mm, the radius of curvature of the artificial cornea and the artificial eye fundus is 9.5mm, the thickness of the insulating ring is 1mm, and the side of the insulating ring close to the artificial cornea is at a distance from the artificial eye. The distance between the inner surface of the cornea is 2.5 mm, and the distance between the side of the insulating ring close to the artificial eye fundus and the inner surface of the artificial eye fundus is 3.5 mm. The artificial cornea is made of glass, the insulating ring is made of conventional plastic, and the material of the hydrophobic dielectric layer is parylene. The non-polar liquid adopts monobromododecane, and the polar liquid is an aqueous solution containing sodium chloride, ethylenediaminetetraacetic acid and polyethylene glycol 2000, wherein the mass percentage of sodium chloride is 3%, and the The...

Embodiment 3

[0035] use as figure 1 In the simulated eye shown, the inner diameter of the cylindrical shell is 6.5 mm, the length is 7 mm, the radius of curvature of the artificial cornea and the artificial eye fundus is 9 mm, the thickness of the insulating ring is 1 mm, and the distance from the side of the insulating ring close to the artificial cornea to the artificial cornea The distance between the inner surface of the artificial eye fundus and the inner surface of the artificial eye fundus is 3 mm. The artificial cornea is made of glass, the insulating ring is made of conventional plastic, and the material of the hydrophobic dielectric layer is parylene. The non-polar liquid adopts bromododecane, and the polar liquid is an aqueous solution containing magnesium chloride, ethylenediaminetetraacetic acid and polyethylene glycol 2000, wherein the mass percentage of magnesium chloride is 5%, and the ethylenediaminetetraacetic acid The mass percentage content of polyethylene glycol 2000 ...

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Abstract

The present invention provides simulation eye. The simulation eye comprises transparent keratoprosthesis and a sealed cylindrical housing; the keratoprosthesis is fixed at one end of the housing and has a middle part which is projected outwards in a spherical surface shape, and a concave spherical artificial fundus corresponding to the keratoprosthesis is fixed at the other end of the housing; the outer wall of the housing is provided with an electrode layer, and the inner wall of the housing is provided with hydrophobic dielectric layers; an insulation ring configured to separate the electrode layer from the hydrophobic dielectric layers is fixed at the middle part of the housing, and the insulation ring divides the inner cavity of the housing into a front cavity, a middle cavity and a back cavity, wherein the middle cavity corresponds to the insulation ring, and the front cavity and the back cavity respectively correspond to the hydrophobic dielectric layers at two side of the insulation ring; a conductive polar liquid is arranged in the middle cavity, and an insulated non-polar liquid is arranged in the front cavity and the back cavity; and the polar liquid and the insulated non-polar liquid have same density and different refractive indexes and cannot dissolve with each other, the polar liquid communicates the anode of a direct current power supply, and the electrode layer communicates to the cathode of the direct current power supply. The polar liquid comprises aqueous solution containing salt, ethylene diamine tetraacetic acid and polyethylene glycol.

Description

technical field [0001] The invention relates to a human eye calibration model, in particular to a simulated eye. Background technique [0002] At present, the human eye diopter inspection instruments (such as refractometers and refractometers) produced by ophthalmic equipment manufacturers on the market all use their own human eye calibration models, and they are all non-adjustable static model eyes. There is no unified calibration in the industry in China In addition, the human eye calibration models of different manufacturers are different, resulting in different standards for the human eye diopter inspection instruments produced by different manufacturers. It is difficult for doctors to use inspection instruments from different manufacturers to check patients, which brings inconvenience. [0003] In response to the above problems, the publication number is CN102831810A, and the publication date is December 19, 2012. The Chinese patent application titled "a calibration mod...

Claims

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Application Information

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IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 黄锦海王勤美陈浩于航
Owner THE EYE HOSPITAL OF WENZHOU MEDICAL UNIV
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