Method for monitoring eye position coordinate based on ocular electrical signal

Abstract

The invention relates to a method for monitoring an eye position coordinate based on an ocular electrical signal. The method analyzes an ocular electrical signal and extracts an eye movement signal, determines an eye state by analyzing the eye movement signal, and further determines an eye position coordinate, and after calculating the coordinate of the eye position, the visual damage feedback isgiven according to the real-time state of the eye and the distribution of radioactivity. The method does not require the device to be mounted directly on the eye, but instead places the electrodes onthe outside of the eye. By further studying the relationship between eye potential and eye movement, the corresponding features are extracted, the eye potential EOG can be used to accurately determinethe angle and direction of the eyeball rotation, and the eyeball can be accurately positioned. The method can be widely used in the detection of eye position during ocular radiotherapy in medical treatment, and prevents the occurrence of radiation therapy field near or even involving important functional organs such as visual organs.

Description

technical field [0001] The invention relates to electrooculogram signal processing and analysis, in particular to a method for monitoring eyeball position coordinates based on electrooculogram signals. Background technique [0002] With the development of modern science and technology, eye movement recording technologies that can accurately and objectively reflect eye movements continue to emerge, and eye trackers, electrooculographs and other products have been designed, which have the basic conditions for clinical application in medicine. At present, eye movement recording technology has been applied in clinical diagnosis and treatment such as eye disease inspection, diagnosis and treatment. [0003] After years of clinical practice of intensity-modulated radiation therapy (IMRT) for nasopharyngeal carcinoma, domestic and foreign literatures have reported that IMRT technology can not only significantly improve the curative effect of nasopharyngeal carcinoma patients, but a...

AI Technical Summary

Problems solved by technology

For patients whose radiation therapy area is close to or has already involved the visual organs, during the radiation therapy process, the lens and cornea, which have the worst radiation dose tolerance, may be due to the involuntary or unconscious rotation of the eyeballs, which were originally safer. The low-dose area, moved to the high-dose radiation treatment area, causing unnecessary radiation damage

However, with the current treatment monitoring equipment, real-time eye movement monitoring cannot be achieved, and it is impossible to find that the lens and cornea are in the high-dose area by mistake in time. It is necessary to design a method that can judge the position of the eyeball during radiation therapy.

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