Abstract: Objective To explore the effects of visual tasks added in physical activities on kinetic and static visual acuity for 6-9 years old children.
Methods Children's visual function and seeing activity were analyzed and four kinds of physical activities with visual tasks were designed. From June to August, 2018, 38 pupils from a sports summer camp aged 6 to 9 years with normal vision participated in the eight-week training. Their kinetic and static visual acuity was measured before, four weeks, and eight weeks after training.
Results Both kinetic and static visual acuity improved after training (F > 24.368, P < 0.001), and the binocular static visual acuity improved more in the boys than in the girls (t > 2.161, P < 0.05). There was a moderate positive correlation among kinetic and static visual acuity (r > 0.424, P < 0.01).
Conclusion Physical activities with visual tasks are beneficial for kinetic and static visual acuity for children aged 6-9 years, which may be an approach to promote vision health.

Key words: physical activity, visual task, kinetic visual acuity, static visual acuity, children