System for determining treatment area of vision correction surgical operation

Abstract

The invention discloses a system for determining a vision correction surgical operation treatment area, and belongs to the technical field of vision correction surgical operations. Firstly, a patient eyeball model and an initial treatment area are generated; the current treatment area is applied to the patient eyeball model, the visual quality is evaluated through simulation, and if a preset requirement is met, the current treatment area is accepted; otherwise, the first to last coefficients of the current treatment area are sequentially adjusted one by one according to a preset optimization trend, the visual quality is continued to be evaluated, and when the visual quality is not improved, the first to last coefficients of the current treatment area is adjusted according to the reverse direction of the preset optimization trend; and if the adjusted treatment area is applied to the patient eyeball model and the visual quality is still not improved, a high-order item is added on the basis of the current treatment area, and the visual quality is continued to be evaluated. In this way, the best treatment effect can be provided for patients, and the system is particularly suitable for some high-myopia patients and keratoconus patients.

Description

technical field [0001] The invention belongs to the technical field of vision correction surgery, and more particularly relates to a system for determining the treatment area of ​​vision correction surgery. Background technique [0002] There are a growing number of laser systems used in ophthalmic surgery, targeting the cornea, lens, retina and other parts of the eye. In typical applications, the precision of ophthalmic surgery is limited by the precision of the alignment of the treatment area with the eyeball. During ophthalmic surgery, real-time eye tracking is usually used to avoid fixing the patient's eyeball. At this time, the center of laser treatment will be repositioned according to the eye movement to ensure that the treatment area is at the predetermined position. [0003] At present, most researchers believe that the best treatment center is the intersection of the visual axis and the corneal surface, but it is difficult to accurately measure this point. There ...

AI Technical Summary

Problems solved by technology

[0009] To sum up, traditional treatment center selection methods usually select treatment centers according to certain rules or manual adjustments, and there is no clear method to evaluate the impact of treatment cent

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