In 2008, a new version of eye exercises came out. From May to July 2008, the Beijing Municipal Center for Disease Control and Prevention conducted a trial tracking and effect evaluation of a new version of eye exercises for 300 primary and middle school students. Before and after the operation of new and old eye exercises, the students' visual acuity, mental work ability index, and blood flow velocity were compared. The evaluation showed that the new eye exercises are effective in improving students' vision and relieving eye fatigue. The old version of eye exercises.
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- Hermelinda Jimenez
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