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Refraction, static and kinetic visual acuity of junior baseball players Hiroshi Edagawa 1,2,3 , Seiko Mochizuki 1 , Masao Matsubara 2,3 1Edagawa Eye Clin 2Dept of Ophthalmol, Tokyo Women's Med Univ Med Cent East 3Japan Inst of Sports Sci pp.1503-1508
Published Date 2012/10/15
DOI https://doi.org/10.11477/mf.1410104394
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Abstract. Purpose:To report the visual function of junior baseball players. Cases and Method:This study was made on 29 baseball players aged from 8 to 15 years. The series comprised 27 boys and 2 girls. The age averaged 13.2 years. They were tested for static and kinetic visual acuity, refraction, eye position and movement, and convergence. Results:All were orthophoric. All showed normal eye movement and convergence. Static visual acuity was 1.0 or over in 52 out of 58 eyes(90%)and was 1.0 or over in 28 out of 29 cases(97%)when seen with both eyes. Kinetic visual acuity was 1.0 or over in 37.9% of eyes mono-ocularly and 20.7% binocularly. Static and kinetic visual acuity was significantly correlated and was not related to the age. Refraction was correlated with static visual acuity and not with kinetic one. Conclusion:Anomaly in refraction is present in the majority of junior baseball players. A correlation is present between static and kinetic visual acuity.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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