Simulation eye

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...

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Problems solved by technology

[0004] The applicant of the present application found that when implementing the above Chinese patent application, although the patent application realizes the adjustment of diopter through voltage, the stability of the optical axis is not good.

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