Optical system used for objective visual quality analysis and having aberration detecting and compensating functions

A visual quality and optical system technology, applied in the field of optical instruments, can solve the problems of inability to separately evaluate aberrations and inability to perform accurate preoperative analysis, etc.

Inactive Publication Date: 2016-05-04
刘瑞雪
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Problems solved by technology

However, this system can only be evaluated as a whole, and cannot separately evaluate the influence of aberrations and other factors other than aberrations
Therefore, it is still impossible to conduct accurate preoperative analysis for the situation that only changes one factor of human eye aberration, such as corneal refractive surgery.

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  • Optical system used for objective visual quality analysis and having aberration detecting and compensating functions

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Embodiment Construction

[0023] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0024] The visual quality analysis optical system of the present invention, by combining the wavefront detector with the point light source imaging system, and adding a wavefront corrector for real-time compensation of human eye aberration, can not only evaluate the overall visual quality of the human eye, but also detect human Eye aberration can also evaluate the visual quality under the influence of other factors besides human eye aberration, and can also simulate and evaluate the visual quality after corneal refractive surgery before surgery.

[0025] Such as figure 1 As shown, the objective visual quality analysis optical system with aberration detection and compensation of the present invention includes three parts: an illumination optical path, a pupil positioning optical path, and a main optical path.

[0026] The illumination light path...

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Abstract

The invention relates to an optical system used for objective visual quality analysis and having aberration detecting and compensating functions and belongs to the technical field of optical instruments. The optical system is used for checking and testing eyes and comprises an illuminating optical path, a pupil-positioning optical path and a main optical path. By combining a wavefront detector with a point light source imaging system and meanwhile adding a wavefront correction device for compensating human eye aberration in real time, the optical system can achieve evaluate the overall visual quality of human eyes, can also independently detect the human eye aberration and evaluate the visual quality under the influence of other factors besides the human eye aberration and can further perform preoperative simulation to evaluate the visual quality after a corneal refractive surgery.

Description

technical field [0001] The invention relates to an objective visual quality analysis optical system with aberration detection and compensation, which is used for checking and testing eyes and belongs to the technical field of optical instruments. Background technique [0002] With the development of cataract surgery and corneal refractive surgery, visual quality has gradually begun to be valued by ophthalmologists. Visual quality is an index to express the performance of the entire human eye optical system, and it is an important reference for ophthalmologists to judge patients' preoperative analysis and postoperative satisfaction. [0003] Indicators for evaluating visual quality, including subjective perception, visual acuity, contrast sensitivity, modulation transfer function, point spread function, aberration, scattering, diffraction, etc. Common such examinations use methods such as distinguishing the letters of the eye chart and contrast-sensitive examinations, but th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/14A61B3/12G02B27/10
CPCA61B3/0008A61B3/12A61B3/14G02B27/10
Inventor 刘瑞雪吴晓萌
Owner 刘瑞雪
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