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A new index for QOV of the middle aged using a binocular eye tracking analysis

Research Project

Project/Area Number 22700552
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Rehabilitation science/Welfare engineering
Research InstitutionKanazawa Medical University

Principal Investigator

HATSUSAKA Natsuko  金沢医科大学, 医学部, 助教 (50505352)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords老年学 / 視機能 / 眼球運動 / 読書 / Quality of Vision / 中高齢者 / 有効視野 / 読書速度 / 両眼視線解析 / 眼球運動解析 / 読書能力
Research Abstract

Eye movements during reading consist of repetitions of saccade and fixation, and function effectively. It is known that reading speed decreases in healthy middle aged due to effects such as presbyopia. The present study investigated the relationships between decrease of reading speed and eye movements during reading vertical and horizontal Japanese text with comparison between the middle aged and young adults. Eye movements of 11 middle aged and young adults were measured using eye tracking system. As a result, reading speed decreased with age both for vertical and horizontal texts, attributed to significant decrease of saccade length, not to the delay of fixation time. In addition, the saccade length of middle aged decreased irrespective of influence of presbyopia and the size of letters, and it has been reported that aging has no significant effect on saccade length in general. The decrease of reading speed might be largely attributed to the decrease of letter recognition range during reading.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (16 results)

All 2012 2011 2010

All Journal Article (6 results) (of which Peer Reviewed: 3 results) Presentation (10 results)

  • [Journal Article] Change in retinal image contrast with age in eyes with transparent lenses.2012

    • Author(s)
      N.Mita,N.Hatsusaka,H.Sasakietal
    • Journal Title

      J Cataract Refract Surg.

      Volume: 38 Pages: 1782-1787

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 台湾人小児および中高齢者の眼軸長と眼屈折.2011

    • Author(s)
      初坂奈津子,HM.Cheng,佐々木洋他
    • Journal Title

      眼鏡学ジャーナル

      Volume: 14 Pages: 23-25

    • NAID

      40022135823

    • Related Report
      2012 Final Research Report
  • [Journal Article] 核白内障と水晶体屈折力.2011

    • Author(s)
      初坂奈津子,佐々木洋
    • Journal Title

      あたらしい眼科

      Volume: 28 Pages: 77-78

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 皮質白内障眼とWatercleftsの遠視化への影響2011

    • Author(s)
      初坂奈津子,三田哲大,佐々木洋他
    • Journal Title

      日眼会誌

      Volume: 115 Pages: 848-849

    • NAID

      10030590434

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 中高齢者の読書速度の低下と眼球運動の関係.2011

    • Author(s)
      初坂奈津子,鈴屋雄輔,河原哲夫,佐々木洋
    • Journal Title

      ITETechnicalReport

      Volume: 35(51) Pages: 75-79

    • Related Report
      2012 Final Research Report
  • [Journal Article] 中央齢者の読書速度の低下と眼球運動の関係2011

    • Author(s)
      初坂奈津子, 他3名
    • Journal Title

      映像情報メディア学技術報告ITE Technical Report

      Volume: 35(51) Pages: 75-79

    • Related Report
      2011 Annual Research Report
  • [Presentation] 読書時の縦読みと横読みにおける眼球運動の中高齢者と若年者の違い.2012

    • Author(s)
      初坂奈津子,河原哲夫,佐々木洋
    • Organizer
      第48回日本眼光学学会総会
    • Place of Presentation
      東京
    • Year and Date
      2012-09-02
    • Related Report
      2012 Final Research Report
  • [Presentation] Relationship between reading performance of the elderly and eye movements.2012

    • Author(s)
      N.Hatsusaka,Y.Suzuya,T.Kawahara,H.Sasaki
    • Organizer
      The Association for Researchin Visionand Ophthalmology 2012
    • Place of Presentation
      Florida
    • Year and Date
      2012-05-09
    • Related Report
      2012 Final Research Report
  • [Presentation] 読書時における中高齢者と若年者の眼球運動の比較.2012

    • Author(s)
      初坂奈津子,鈴屋雄輔,河原哲夫,佐々木洋
    • Organizer
      第116回日本眼科学会総会
    • Place of Presentation
      東京
    • Year and Date
      2012-04-07
    • Related Report
      2012 Final Research Report
  • [Presentation] 読書時における中高齢者と若年者の眼球運動の比較2012

    • Author(s)
      初坂奈津子
    • Organizer
      日本眼科学会
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] Relationship between reading performance of the elderly and eye movements2012

    • Author(s)
      Natsuko Hatsusaka
    • Organizer
      The Association for Research in Vision and Ophthalmology
    • Place of Presentation
      Florida
    • Related Report
      2012 Annual Research Report
  • [Presentation] 読書時の縦読みと横読みにおける眼球運動の中高齢者と若年者の違い2012

    • Author(s)
      初坂奈津子
    • Organizer
      日本眼光学学会
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] 中高齢者の読書速度の低下と眼球運動の関係.2011

    • Author(s)
      初坂奈津子,鈴屋雄輔,河原哲夫,佐々木洋
    • Organizer
      ヒューマンインフォメーション研究会
    • Place of Presentation
      沖縄
    • Year and Date
      2011-12-10
    • Related Report
      2012 Final Research Report
  • [Presentation] 加齢による読書速度の低下と眼球運動.2011

    • Author(s)
      初坂奈津子,鈴屋雄輔,河原哲夫,佐々木洋
    • Organizer
      第47回日本眼光学学会総会
    • Place of Presentation
      東京
    • Year and Date
      2011-09-04
    • Related Report
      2012 Final Research Report
  • [Presentation] 加齢による読書速度の低下と眼球運動2011

    • Author(s)
      初坂奈津子
    • Organizer
      第47回日本眼光学学会総会
    • Place of Presentation
      東京ステーションコンファレンス(東京)
    • Year and Date
      2011-09-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] 台湾人小児および中高齢者の眼軸長と眼屈折2010

    • Author(s)
      初坂奈津子,HM.Cheng,佐々木洋他
    • Organizer
      第14回日本眼鏡学会
    • Place of Presentation
      金沢
    • Year and Date
      2010-05-12
    • Related Report
      2012 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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