Human eye test model for evaluating three-dimensional imaging performance of OCT equipment of ophthalmology department and use method thereof

Abstract

The invention belongs to the field of medical apparatuses and instruments and particularly discloses a human eye test model for evaluating the three-dimensional imaging performance of OCT equipment of the ophthalmology department and a use method of the human eye test model. A simulated human eye is provided with key parts of imaging of the ophthalmology department, wherein the key parts include the cornea (2), the atria (3), the crystalline lens (5), the vitreous body (7) and the retina (8). An OCT resolution test pattern (9) and a view marking ring (10) are designed and distributed on the surface of the retina. The OCT resolution test pattern (9) includes two parts. One part of patterns are used for evaluating the OCT transverse resolution, all sets of patterns are the same in height, each set of pattern is composed of three short lines in the horizontal direction and three short lines in the vertical direction on the two-dimensional plane, and the lengths of the short lines gradually decrease; the other part of patterns are used for evaluating the OCT axial resolution, each set of pattern is a square on the two-dimensional plane, the length and the width of each square are the same, but the heights of the squares gradually decrease. The human eye test model is designed and manufactured according to the imaging principle of the OCT equipment, and the three-dimensional resolution performance of the OCT equipment can be evaluated by carrying out measurement and imaging on the simulated human eye.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a testing human eye model used for three-dimensional imaging performance evaluation of ophthalmic OCT equipment and a use method thereof. Background technique [0002] Optical coherence tomography (OCT) imaging is a non-invasive three-dimensional imaging diagnostic technology proposed in the early 1990s, and has been widely used in clinical diagnosis in the field of ophthalmology. Since OCT is a new imaging technology, there is no corresponding test standard in the world at present, and there is also a lack of a simulated human eye model for evaluating the imaging performance of OCT equipment. Therefore, it is urgent to provide a simple and direct measurement method and standard The appliance can effectively obtain the lateral resolution and axial resolution of the OCT device at the same time. Contents of the invention [0003] The object of the present invention is ...

AI Technical Summary

Problems solved by technology

Since OCT is a new imaging technology, there is no corresponding test standard in the world at present, and there is also a lack of a simulated human eye model for evaluating the imaging performance of OCT equipment. Therefore, it is urgent to provide a simple and direct measurement method and standard The appliance can effectively obtain the lateral resolution and axial resolution of OCT equipment at the same time

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