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Effects of astigmatic axis orientation on postural stabilization with stationary equilibrium

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Abstract

We evaluated 15 healthy participants by assessing their maintenance of postural control while standing on a platform stabilometer for 1 min under the following conditions: eyes open; eyes open with + 3.00 D on both eyes on same directions (45, 90, 135, 180 degree axis); right eye on 45 degree axis and left eye on 135 degree axis (inverted V-pattern), and right eye on 135 degree axis and left eye on axis 45 degree axis (V-pattern). The differences in the linear length, area and maximum velocity of center of pressure during postural control before and after the six types of positive cylinder-oriented axes were analyzed. Comparing the antero-posterior lengths and antero-posterior maximum velocities, there were significant differences between the V-pattern condition and the six other conditions. Astigmatic defocus in the antagonistic axes conditions, particularly the V-pattern condition, affects postural control of antero-posterior sway (143/150).

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Authors and Affiliations

  1. Department of Orthoptics and Visual Science, Kitasato University School of Allied Health Sciences, Sagamihara, Kanagawa, 252-0373, Japan

    Masatsugu Kanazawa, Hiroshi Uozato, Ken Asakawa & Takushi Kawamorita

  2. Department of Orthoptics, Osaka University of Human Sciences, Settu, Osaka, 566-0023, Japan

    Hiroshi Uozato

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  1. Masatsugu Kanazawa
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  2. Hiroshi Uozato
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  3. Ken Asakawa
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  4. Takushi Kawamorita
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Correspondence to Masatsugu Kanazawa.

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Kanazawa, M., Uozato, H., Asakawa, K. et al. Effects of astigmatic axis orientation on postural stabilization with stationary equilibrium. Opt Rev 25, 27–32 (2018). https://doi.org/10.1007/s10043-017-0383-2

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  • DOI: https://doi.org/10.1007/s10043-017-0383-2

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