国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

With the popularization of electronic products, the frequency of use of electronic devices by teenagers and children continues to increase, resulting in an increase in the rate of myopia in adolescents and children. In order to control the increase of myopia rate, the early control of myopia can prevent the occurrence of late myopia, a portable myopia prevention device based on integrating spectral stimulation and perceptual training was designed and developed. The device is controlled by the Android system based on the Allwinner A133 motherboard, and uses the ESP32 wireless transmission module to transmit user information to the server and the device screen display after logging in on the user"s mobile phone application, and serve as the communication module between the motherboard and the lighting module. The lighting module includes a lighting system driven by a constant current power supply, which includes red light training, LED white light afterimage training, RBG multi-spectral training and LED guided eye muscle adjustment training and other lighting training functions, among which red light training is the main function. It can prevent and improve the increase in the length of the eye axis by irradiating the retina steadily with a low-intensity laser with suitable size, safe light intensity and uniform spot, which can ensure the content of retinal dopamine and accelerate the blood circulation of the choroid and sclera, thereby inhibiting the occurrence and development of myopia. After lighting training, use the built-in Unity vision training software to further assist in the prevention of myopia and amblyopia. The design provides a new perspective for portable myopia prevention devices that can be applied in healthcare equipment.