Visual training instrument

Abstract

The invention discloses a vision training instrument, which comprises a box body and an eye observation frame installed on one side of the box body, the other side of the U-shaped wire take-up box is a ring-shaped wire take-up box, and the U-shaped wire take-up box There is a guide rail in the middle part, and a 5V switching power supply, a 24V switching power supply, a programmable controller, and a stepping motor controller are arranged in sequence inside the circular take-up box, and a stepping motor is arranged on the side of the stepping motor controller. The two ends of the sliding block are stuck on the guide groove, and the synchronous belt runs through the sliding block, the sliding block is fixed on the synchronous belt, the visual mark fixing plate is installed on the sliding block, and the visual mark is installed on the vertical column of the visual standard fixing plate The vision observation sheet arranged in the visual target board is illuminated by the internal LED light. The present invention can better make different rehabilitation plans according to the naked eye vision of different trainees, and the effective rate is over 95%.

Description

technical field [0001] The invention relates to a vision training instrument. Background technique [0002] Myopia has become an important issue affecting the health of the Chinese people. Since 1985, China has conducted four national surveys on the physical health of adolescents. The results show that in the past 20 years, the physical fitness of Chinese adolescents has continued to decline, and the incidence of myopia has increased year by year. In 2004, The Ministry of Education made a "National Student Physical Health Monitoring Report in 2004". In this report, the detection rate of poor vision among primary school students aged 7 to 12 in China was 32.5%, that of junior high school students was 59.4%, and that of high school students was poor. The detection rate of poor vision is 77.3%, and the detection rate of poor vision of college students is 80.0%. The incidence of poor vision of students is increasing year by year. [0003] At present, according to the preliminar...

AI Technical Summary

Problems solved by technology

[0004] There are many types of vision training instruments on the market, but their pertinence is poor. Because the degree of myopia of each student is different, different training programs cause the distance between each person's eyes and the target to be di

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