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Eye aberration individualized cutting type rectification method

A correction method and technology for the human eye, which can be used in ophthalmic surgery, ophthalmic treatment, and equipment for testing eyes, etc. Effect

Inactive Publication Date: 2004-11-03
贺极苍 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this information is not well utilized in current laser correction systems
Not only that, the current laser surgery often causes more aberrations in some human eyes

Method used

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  • Eye aberration individualized cutting type rectification method
  • Eye aberration individualized cutting type rectification method
  • Eye aberration individualized cutting type rectification method

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Embodiment

[0015] Example: such as figure 1 , figure 2 Shown here are the wavefront aberrations and Zernike coefficients for a specific patient using a subjective aberrometer. Of course, the method of the present invention is also applicable to other forms of wavefront aberrometers and other patients. The X-Y axis in the figure is used to represent the position of the pupil. The wavefront aberration diagram represents the optical path difference between a beam of parallel light emitted from an object reaching the human eye and focusing on an ideal image point on the retina through a specific pupil position. The unit of optical path difference is micron. It is represented in detail with a wavefront aberration map. If the optical path difference is corrected, the human eye will be an ideal eye without scattering.

[0016] Another way to describe the wavefront aberration is to decompose the wavefront aberration map into a series of Zernike function terms. This Zernike function item i...

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Abstract

The present invention is cutting type human eye aberration personally correcting method. Human eye wave aberration value the human eye aberration instrument measures is converted into cornea thickness cutting amount for refraction operation apparatus to perform personal eye cutting operation to correct human eye aberration. The corrected aberration includes not only myopia, hyperopia, astigmatism and other lower aberration components but also coma aberration, spherical aberration and other higher aberration components. The method can improve human eye's optical characteristic at most and improve eyesight.

Description

technical field [0001] The invention relates to a measurement in medicine and a control method in an operation device, in particular to a control method used in an ophthalmology measurement and vision correction device. Background technique [0002] As a biological body, the optical quality of the human eye is not ideal, and there are optical defects called aberrations in optics. There are many reasons for this optical defect, such as: corneal and lens surfaces are not ideal, cornea and lens are not coaxial, etc. There are high and low levels of human eye aberration. Myopia, hyperopia, and astigmatism are low-order aberrations, and other more aberrations, including coma and spherical aberration, are high-order aberrations. All people have aberrations in their eyes, but the degree is different, the size varies from person to person, and the impact on vision is also very different. Now, studies of aberrations in the human eye have found that aberrations severely affect visi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/00A61F9/008A61F9/01
Inventor 贺极苍
Owner 贺极苍
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