Portable eyeball static rotation measuring instrument and method for measuring eyeball rotation angle by using instrument

Abstract

The invention relates to a portable eyeball static rotation measuring instrument. The measuring instrument comprises a high-definition infrared camera, an image processing module, an image acquisitionbutton, an infrared light source, a visible light source, a test window and a wearable helmet. The high-definition infrared camera, the image processing module, the image acquisition button, the infrared light source, the visible light source and the test window are all arranged on the wearable helmet, and the wearable helmet is arranged in a longitudinal direction and can be movably and detachably arranged in front of the eyes of a user. The two high-definition infrared cameras are symmetrically arranged in a horizontal direction and are arranged inside the wearable helmet, and the high-definition infrared cameras can simultaneously capture iris images of both eyes; and the infrared light source and the visible light source are arranged between the two high-definition infrared cameras. The measuring instrument is portable, rapid in measurement and low in requirement for the measurement environment, a doctor can understand the static rotation angle of a patient only through simple operation, the problems in the prior art are solved, and the measuring instrument serves as a reference for operation mode recommendation.

Description

technical field [0001] The invention belongs to the technical field of ophthalmic examination, in particular to a portable eyeball static rotation measuring instrument and a method for measuring the eyeball rotation angle by using the instrument. Background technique [0002] At present, the incidence of myopia is high in my country, and refractive surgery has become one of the main means of refractive correction. Corneal refractive surgery has been proven to be safe and effective. Accurate center positioning can enable patients to obtain more perfect vision quality. The patient's eyeball rotation due to body position changes is called static rotation. The preoperative examination of the patient is performed in the sitting position, while the operation is performed in the supine position, static rotation may lead to inaccurate positioning. In recent years, some new technologies have emerged. The iris positioning technology can measure the static rotation angle of the eyebal...

AI Technical Summary

Problems solved by technology

The preoperative examination of the patient is performed in the sitting position, while the operation is performed in the supine position, static rotation may lead to inaccurate positioning

In recent years, some new technologies have appeared. The iris positioning technology can be used to measure the static rotation angle of the eyeball, and automatically correct the rotation angle during the operation to make the positioning more accurate. However, the traditional LASIK surgery and SMILE surgery do not have iris tracking and positioning functions. There are large individual differences in the static rotation angle of the eyeball. If the static rotation angle of the patient is large, the accuracy of astigmatism correction will be greatly deviated. Therefore, it is necessary to fully consider the static rotation angle of the patient's eyeball when recommending surgery.

It is very important to know the rotation angle of the patient's eyeball before the operation. Not only that, any operation or treatment needs to know the static rotation of the eyeball in the sitting and lying positions. However, there is no portable eyeball rotation angle measurement at present. equipment

[0003] Through the search, no patent publications related to the patent application of the present invention have been found

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