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Eye model for wide field fundus imaging

A model, imaging technology, applied in teaching models, eye testing equipment, applications, etc., can solve problems such as hindering accurate diagnosis and retinal blurring

Active Publication Date: 2019-07-05
保罗安德鲁耶茨 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When imaging with these wide-field cameras, blurring of the retina, detail in reflected and scattered light in the human eye is common and can hinder accurate diagnosis

Method used

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  • Eye model for wide field fundus imaging
  • Eye model for wide field fundus imaging
  • Eye model for wide field fundus imaging

Examples

Experimental program
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Embodiment Construction

[0014] figure 1 An Infant Eye Model-100 for Wide Field Retinal Imaging is shown. The external view of the infant eye model 100, including the cornea model-1, the front part of the eyeball-2, the back part of the eyeball-3, and the O-ring-4.

[0015] In a preferred example of the present invention, the nominal radius of the front surface of the cornea model 1 is about 6 mm, and the nominal value of the outer diameter of the eye model 100 is about 18 mm. The cornea model 1 is fixed on the front part of the eyeball 2 in front of the eye model 100 . The O-ring 4 realizes a watertight seal between the front part 2 and the back part 3 of the eyeball.

[0016] figure 2 A cross-section of an infant eye model 100 for wide-area retinal imaging is shown. The cross-section includes a cornea model 1 , an iris model 5 , a lens model 6 , an eyeball front 2 , an eyeball back 3 , an O-shaped sealing ring 4 , a simulated retinal spherical shell 7 and a birefringence material layer 8 .

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Abstract

The present invention contemplates an infant eye model for wide field retinal imaging by implementing nominal physical parameters and optical characteristics found in scientific literature and by simulating retinal features and details found in real eye images. The present invention also contemplates implementing a corneal model with a translucent plastic to mimic image haze and 1st Purkinje reflection. The present invention also contemplates implementing a birefringent layer to the lens posterior surface to simulate 4th Purkinje reflection and its brightness variation. The present invention further contemplates implementing a photo-realistic retinal hemisphere shell to provide retinal details and demonstrate retinopathy associated with retinal diseases.

Description

[0001] References to related applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 375547, Yates et al., entitled "Wide Area Fundus Eye Model Imaging," filed August 16, 2016, which is hereby incorporated by reference in its entirety . technical field [0003] The invention relates to an eye model for wide-area fundus imaging. In particular, the present invention relates to an eye model suitable for wide-area fundus imaging with simulated retinal photos. Background technique [0004] However, the simplification of the eye models described above can alter the optical properties so that the light reflections of these models do not exactly replicate the features in the human eye. Especially when the light irradiates the simulated eye, the size, shape, brightness, and relative position of the reflected light on the X, Y, and Z axes for the incident light, scattering, mist, and polarization cannot fully simulate the human eye. Giv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/28
CPCG09B23/30A61B3/1173A61B3/14
Inventor 保罗·安德鲁·耶茨赖明伊大维
Owner 保罗安德鲁耶茨
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