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According to statistics, the incidence of myopia rate over the world is 22%.
We do need a self-vision measuring instrument to be able to measure our eyesight in our daily life, especially teenagers. The traditional vision measurement need a helper.However, with this self-vision measuring instrument, user can fulfill a vision measurements by oneself.
I designed his self-vision measuring instrument composed of the main part of the self-vision measuring instrument and the direction induction stick, allowing the user to judge the eyesight mark on the screen of the self-vision measuring instrument with the direction induction stick.
zhejiang university of science and technology
hangzhou, China
Yang Liu,Zengbin Liu,Sheng Jiang,
Yubiao Wang,Aizhong Shao
zhejiang university of science and technology
hangzhou, China