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Differentiation of healthy myopic eyes from glaucomatous myopic eyes by deep optic nerve head morphology

Research Project

Project/Area Number 20K18368
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Saito Hitomi  東京大学, 医学部附属病院, 講師 (40870069)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords緑内障 / 近視 / 視神経乳頭 / 眼軸長 / 篩状板 / ブルフ膜 / 乳頭周囲脈絡膜 / 篩状板前組織 / 光干渉断層撮影 / OCT / myopia / optic nerve head / glaucoma / 光干渉断層計
Outline of Research at the Start

東洋人に多い近視は緑内障のリスクファクターであることは知られているが、近視眼のすべてが緑内障になるわけではなく、正常近視眼と緑内障近視眼の相違点の詳細は解明されていない。SS-OCTを用いて視神経乳頭周囲の深部構造を観察することによって両者を鑑別するような新しいパラメータを探索する。

Outline of Final Research Achievements

In this study, we quantified deep optic nerve head morphology (Bruch's membrane opening, anterior scleral canal opening, peripapillary choroid, lamina cribrosa etc.) of myopic eyes upon swept-source optical coherence tomography images. We identified the structural changes that occur with axial elongation in healthy eyes to elucidate the characteristics of healthy myopic eyes. Additionally, we explored the structural similarities and differences between non-glaucomatous myopic eyes and myopic primary open-angle glaucoma (hereafter referred to as glaucoma) to differentiate between structure changes are associated with axial length elongation and glaucomatous damage.

Academic Significance and Societal Importance of the Research Achievements

近視は日本人の緑内障の最大のリスクファクターであるが、眼軸延長によって生じる近視性の視神経乳頭変化と緑内障性変化は検眼鏡的共通点が多く、鑑別が困難である。近年の近視人口の爆発的な増加を考慮すると、今後診断が難しい近視を伴う緑内障眼はさらに増えることが予想されている。
近年の画像診断技術の進歩により近視や緑内障で生じる視神経乳頭周囲の深部組織の構造変化をOCTを用いて定量化することによって、近視や緑内障の構造変化の類似点や相違点を詳細に掴むことができた。本研究の成果を基盤に今後近視性変化と緑内障性変化の鑑別が定量的にかつ自動で行えるようになることが期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (6 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Int'l Joint Research] University of California San Diego(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Seoul National University(韓国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Hong Kong(その他の国・地域)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Seoul National Unviersity(韓国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of California San Diego(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Hong Kong(その他の国・地域)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Effects of Deep Optic Nerve Head Structures on Bruch's Membrane Opening- Minimum Rim Width and Peripapillary Retinal Nerve Fiber Layer2024

    • Author(s)
      Kambayashi Mitsuki、Saito Hitomi、Araie Makoto、Enomoto Nobuko、Murata Hiroshi、Kikawa Tsutomu、Sugiyama Kazuhisa、Higashide Tomomi、Miki Atsuya、Iwase Aiko、Tomita Goji、Nakazawa Toru、Aihara Makoto、Ohno-Matsui Kyoko、Kim Tae-Woo、Leung Christopher Kai Shun、Zangwill Linda M.、Weinreb Robert N.
    • Journal Title

      American Journal of Ophthalmology

      Volume: 263 Pages: 99-108

    • DOI

      10.1016/j.ajo.2024.02.017

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association of Bergmeister Papilla and Deep Optic Nerve Head Structures With Prelaminar Schisis of Normal and Glaucomatous Eyes2024

    • Author(s)
      Saito Hitomi、Ueta Takashi、Araie Makoto、Enomoto Nobuko、Kambayashi Mitsuki、Murata Hiroshi、Kikawa Tsutomu、Sugiyama Kazuhisa、Higashide Tomomi、Miki Atsuya、Iwase Aiko、Tomita Goji、Nakazawa Toru、Aihara Makoto、Ohno-Matsui Kyoko、Kim Tae-Woo、Leung Christopher Kai Shun、Zangwill Linda M.、Weinreb Robert N.
    • Journal Title

      American Journal of Ophthalmology

      Volume: 257 Pages: 91-102

    • DOI

      10.1016/j.ajo.2023.09.002

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deep Optic Nerve Head Structures Associated With Increasing Axial Length in Healthy Myopic Eyes of Moderate Axial Length2023

    • Author(s)
      Saito Hitomi、Kambayashi Mitsuki、Araie Makoto、Murata Hiroshi、Enomoto Nobuko、Kikawa Tsutomu、Sugiyama Kazuhisa、Higashide Tomomi、Miki Atsuya、Iwase Aiko、Tomita Goji、Nakazawa Toru、Aihara Makoto、Ohno-Matsui Kyoko、Kim Tae-Woo、Leung Christopher Kai Shun、Zangwill Linda M.、Weinreb Robert N.
    • Journal Title

      American Journal of Ophthalmology

      Volume: 249 Pages: 156-166

    • DOI

      10.1016/j.ajo.2023.01.003

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Exploring deep ONH structure changes that accompany myopia and glaucoma2023

    • Author(s)
      Hitomi Saito
    • Organizer
      World Glaucoma Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 正常眼と緑内障眼におけるSS-OCTで観察した篩状板構造の比較2022

    • Author(s)
      榎本暢子
    • Organizer
      第33回日本緑内障学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Differences in swept-source optical coherence tomography derived optic nerve head structures associated with axial length elongation in normal eyes2021

    • Author(s)
      齋藤 瞳
    • Organizer
      World Glaucoma Congress
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Differences in swept-source optical coherence tomography derived optic nerve head structures associated with axial length elongation in normal eyes2021

    • Author(s)
      齋藤 瞳
    • Organizer
      日本緑内障学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Evaluation of peripapillary structure with swept-source OCT in myopic eyes2020

    • Author(s)
      齋藤 瞳
    • Organizer
      日本臨床眼科学会
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2025-01-30  

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