Wavefront aberration measurement system, associated visual perception learning training system and method

Abstract

The invention provides a wavefront aberration measurement system. The system comprising a left eye optical path and a right eye optical path, wherein the left eye optical path and the right eye optical path respectively comprises a pupil positioning subsystem comprising a pupil illumination device and a pupil imaging device, an aberration compensation subsystem comprising an internal focusing device and a rotary cylindrical mirror pair, a wavefront aberration measurement subsystem comprising a beacon light source, a light beam matching device, an aperture segmentation element and a photoelectric detector, and a display subsystem comprising a sighting mark imaging objective lens and a sighting mark display device, wherein the wavefront aberration measurement system further comprises a computer which is used for controlling combined work of the subsystems in wavefront aberration measurement and recording and analyzing measurement results. The system can complete binocular three-dimensional positioning, binocular image fusion and aberration compensation, then controls the measurement system to measure the wavefront aberration of the binocular at the same time, and ensures the wavefront aberration of human eyes, especially the accuracy and consistency of high-order aberration measurement.

Description

technical field [0001] The present disclosure relates to ophthalmology optics, in particular, the present disclosure relates to an aberration measurement system, and more particularly, relates to a wavefront aberration measurement system and a visual perception learning training system and a visual perception learning training method associated therewith . [0002] technical background [0003] More than 85% of the information that people get from the outside world comes from vision. Therefore, the eye is an important organ for human beings to communicate with the outside world. It is particularly important to detect and evaluate the health of the human eye's visual function. As a typical optical system, the human eye contains a variety of aberration components. In addition to defocus and astigmatism, it also includes more high-order aberrations, such as coma, trefoil aberration, and spherical aberration. Hartmann wavefront sensing technology is the most commonly used techno...

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Problems solved by technology

[0006] Patent Publication No. WO2005048829A2 discloses a method for measuring binocular aberration using wavefront technology, but its measurement accuracy for large refractive errors is not high due to structural limitations

Specifically, there is no pre-compensation structure in the wavefront aberration measurement of this technology to pre-correct the low-order aberrations, so the low-order aberration measurement capability of the Hartmann wavefront aberration measurement system is limited, when the refractive error Higher-order aberration measurement accuracy is not high when the value is large

[0007] The patent with the publication number CN105496351A reports a binocular optometry device and optometry method. This method only measures defocus, astigmatism and astigmatism axial position, but fails to measure high-order aberrations of the human eye, and there is no three-dimensional binocular vision in the solution. Positioning device, and the accuracy of astigmatism measurement is not high

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