Gas injection control method for blink reflection measurement based on laser navigation

Abstract

The invention discloses a laser navigation-based gas injection control method for blink reflection measurement, which comprises a laser navigation module, a signal transceiver, a main control chip, a camera, an information analysis module, a compressed air generation module and a data storage module connected with the main control chip, the camera is used for judging whether the left eye and the right eye are open or not, the laser navigation module is used for measuring the distance between a nozzle of the compressed air generation module and the vertex of the cornea and transmitting distance parameters to the signal transceiver, and the signal transceiver transmits data to the main control chip after receiving signals. The device is used for checking blink reflex, space and time distribution of air injection pressure in front of the cornea of the left eye and the right eye can be consistent, the pressure and time of triggering the blink reflex by the two eyes are consistent, recording of the blink reflex is facilitated, measurement of the blink reflex can be started at any time without waiting for blink of the eyes, and non-contact measurement and automatic measurement are achieved. Multiple measurements are realized and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of eye blink reflex measurement, in particular to a gas injection control method for blink reflex measurement based on laser navigation. Background technique [0002] The blink reflex, as the name suggests, is the act of using a stimulus to activate the blink reflex. The startle reflex is a defensive reflex in the evolutionary process of humans and animals, and is an important representation of the body's response to threats. In humans, the most continuous and persistent startle reflex pattern is the blink reflex. [0003] Blink reflex, also known as corneal reflex, refers to the involuntary blinking behavior caused by stimulation of the cornea. Causes of this reflection include touching the cornea, ingress of a foreign object, or bright light. An involuntary blink that has a direct causal relationship with the stimulated eye is called the direct corneal reflex, and the other eye unrelated to the stimulus...

AI Technical Summary

Problems solved by technology

[0008] Existing problems: Different patients have different distances from the nozzle of the compressed air generating module due to factors such as sitting posture and facial physiological structure. The distance between the left and right eyes of each patient and the nozzle of the compressed air generating module is different, so that the corneal apex receives The gas pressure and time point are different. This uncertainty may cause the cornea of ​​the left and right eyes to fail to stimulate the blink reflex due to too small pressure, or damage the cornea due to excessive pressure on the cornea.

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