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Pathophysiology of macular disease by measuring scleral thickness using AS-OCT

Research Project

Project/Area Number 20K18349
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionUniversity of the Ryukyus

Principal Investigator

Imanaga Naoya  琉球大学, 病院, 助教 (50866134)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsScleral thickness / Pachychoroid / CSC / SS-OCT / AS-OCT / PNV / anterior segment OCT / pachychoroid / pachychoroid spectrum / choroidal thickness / scleral thickness / swept source OCT / vortex vein / 強膜断層像 / 前眼部光干渉断層計 / スウェプトソース光干渉断層系 / pachychoroid関連疾患
Outline of Research at the Start

近年、pachychoroidと呼ばれる脈絡膜異常が提唱され、網膜色素上皮異常、漿液性網膜剥離、脈絡膜新生血管発症に関与することが注目されている。しかし、pachychoroidを来す原因は解明されていない。pachychoroid関連疾患の強膜構造や脈絡膜流出路である渦静脈の解剖学的な解析を行いpachychoroidの病態解明を行うとともに、病態に即した最適治療の開発を行う。

Outline of Final Research Achievements

Recently, a choroidal abnormality called pachycoloid, characterized by choroidal thickening and choroidal vascular dilatation, has been proposed and suggested to be associated with central serous chorioretinopathy (CSC) and some age-related macular degeneration. However, the mechanism by which pachycoloid arise has remained to be determined.
The applicants measured scleral thickness using anterior segment optical coherence tomography (OCT) and found that the sclera was thicker in CSC eyes than in normal eyes and that thicker sclera was associated with choroidal circulatory overflow in CSC eyes. These findings strongly support that the sclera plays a crucial role in forming pachycoloid and are groundbreaking research results that indicate the possibility of surgical treatment for pachycoloid-related diseases.

Academic Significance and Societal Importance of the Research Achievements

本研究成果にて視機能に高度の影響を及ぼす可能性のある、中心性漿液性脈絡網膜症(CSC)やパキコロイドと呼ばれる脈絡膜異常を原因とする加齢黄斑変性において、強膜の肥厚という眼球の解剖学的な要因が関与している可能性が示唆された。従来はCSCやパキコロイドを原因とする加齢黄斑変性は、光線力学療法や抗血管内皮増殖因子剤の投与という対症療法しか存在しなかったが、本研究により強膜をターゲットとした治療法の開発を見出した。また、事前に強膜を含む眼球パラメーター測定することで、将来的なパキコロイド関連疾患の罹患リスクが判明する可能性がある。

Report

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

    (20 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (14 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Relationship Between Scleral Thickness and Choroidal Structure in Central Serous Chorioretinopathy2023

    • Author(s)
      Imanaga Naoya、Terao Nobuhiro、Sonoda Shozo、Sawaguchi Shota、Yamauchi Yukihide、Sakamoto Taiji、Koizumi Hideki
    • Journal Title

      Investigative Opthalmology & Visual Science

      Volume: 64 Issue: 1 Pages: 16-16

    • DOI

      10.1167/iovs.64.1.16

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical Factors Related to Loculation of Fluid in Central Serous Chorioretinopathy2022

    • Author(s)
      Imanaga Naoya、Terao Nobuhiro、Sawaguchi Shota、Tamashiro Tamaki、Wakugawa Sorako、Yamauchi Yukihide、Koizumi Hideki
    • Journal Title

      American Journal of Ophthalmology

      Volume: 235 Pages: 197-203

    • DOI

      10.1016/j.ajo.2021.09.009

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scleral Thickness in Steroid-Induced Central Serous Chorioretinopathy2022

    • Author(s)
      Sawaguchi Shota、Terao Nobuhiro、Imanaga Naoya、Wakugawa Sorako、Tamashiro Tamaki、Yamauchi Yukihide、Koizumi Hideki
    • Journal Title

      Ophthalmology Science

      Volume: 2 Issue: 2 Pages: 100124-100124

    • DOI

      10.1016/j.xops.2022.100124

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] CILIOCHOROIDAL EFFUSION IN CENTRAL SEROUS CHORIORETINOPATHY2021

    • Author(s)
      Terao Nobuhiro、Imanaga Naoya、Wakugawa Sorako、Sawaguchi Shota、Tamashiro Tamaki、Yamauchi Yukihide、Koizumi Hideki
    • Journal Title

      Retina

      Volume: 42 Issue: 4 Pages: 730-737

    • DOI

      10.1097/iae.0000000000003376

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scleral Thickness in Central Serous Chorioretinopathy2021

    • Author(s)
      Imanaga Naoya、Terao Nobuhiro、Nakamine Sakari、Tamashiro Tamaki、Wakugawa Sorako、Sawaguchi Keiko、Koizumi Hideki
    • Journal Title

      Ophthalmology Retina

      Volume: 5 Issue: 3 Pages: 285-291

    • DOI

      10.1016/j.oret.2020.07.011

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Short Axial Length Is Related to Asymmetric Vortex Veins in Central Serous Chorioretinopathy2021

    • Author(s)
      Terao Nobuhiro、Imanaga Naoya、Wakugawa Sorako、Sawaguchi Shota、Tamashiro Tamaki、Yamauchi Yukihide、Koizumi Hideki
    • Journal Title

      Ophthalmology Science

      Volume: 1 Issue: 4 Pages: 100071-100071

    • DOI

      10.1016/j.xops.2021.100071

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 中心性漿液性脈絡網膜症の新規国際分類と強膜厚2022

    • Author(s)
      今永直也, 寺尾信宏, 澤口翔太, 玉城環, 山内遵秀, 古泉英貴
    • Organizer
      第126回日本眼科学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 眼循環から迫るパキコロイド関連疾患の病態解明2022

    • Author(s)
      今永直也
    • Organizer
      第38回日本眼循環学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 硝子体手術後の低眼圧により中心性漿液性脈絡網膜症を発症した2例2022

    • Author(s)
      宮良安宣, 今永直也, 大城綾乃, 古泉英貴
    • Organizer
      第38回日本眼循環学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 片眼性中心性漿液性脈絡網膜症の発症眼・未発症僚眼の脈絡膜血流2022

    • Author(s)
      冨山亜季子, 寺尾信宏, 真栄田美沙, 今永直也, 廣岡季里子, 橋本勇希, 齋藤理幸, 石田晋, 古泉英貴
    • Organizer
      第38回日本眼循環学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Scleral Contribution in Central Serous Chorioretinopathy2021

    • Author(s)
      Imanaga N, Terao N, Sawaguchi S, Tamashiro T, Wakugawa S, Yamauchi Y, Koizumi H
    • Organizer
      2021 Asia Retina Congress
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 中心性漿液性脈絡網膜症における強膜厚と脈絡膜構造の関連性2021

    • Author(s)
      今永直也, 寺尾信宏, 澤口翔太, 仲嶺盛, 玉城環, 湧川空子, 園田祥三, 坂本泰二, 古泉英貴
    • Organizer
      第125回日本眼科学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 中心性漿液性脈絡網膜症におけるchoroidal effusionに関わる臨床的特徴2021

    • Author(s)
      今永直也, 寺尾信宏, 澤口翔太, 古泉英貴
    • Organizer
      第75回日本臨床眼科学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 中心性漿液性脈絡網膜症に対する光線力学療法前後の強膜厚変化2021

    • Author(s)
      今永直也, 寺尾信宏, 澤口翔太, 玉城環, 山内遵秀, 古泉英貴
    • Organizer
      第60回網膜硝子体学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 片眼性中心性漿液性脈絡網膜症の発症眼・未発症僚眼の強膜厚2021

    • Author(s)
      愛知高明, 今永直也, 寺尾信宏, 澤口翔太, 玉城環, 山内遵秀, 古泉英貴
    • Organizer
      第60回網膜硝子体学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Scleral thickness for choroidal structure in central serous chorioretinopathy2021

    • Author(s)
      Imanaga N, Terao N, Sawaguchi K, Nakamine S, Tamashiro T, Wakugawa S, Sonoda S, Sakamoto T, Koizumi H
    • Organizer
      第125回日本眼科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Clinical factors related to loculation of fluid in central serous chorioretinopathy2020

    • Author(s)
      Imanaga N, Terao N, Sawaguchi S, Nakamine S, Tamashiro T, Wakugawa S, Koizumi H
    • Organizer
      The 13th Joint Meeting of Korea-China-Japan Ophthalmologists, Seoul, Korea
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中心性漿液性脈絡網膜症における脈絡膜血管対称性に関与する解剖学的因子2020

    • Author(s)
      今永直也, 寺尾信宏, 仲嶺盛, 玉城環, 湧川空子, 澤口桂子, 古泉英貴
    • Organizer
      第124回日本眼科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] ステロイド起因性中心性漿液性脈絡網膜症の強膜厚の検討2020

    • Author(s)
      澤口翔太, 仲嶺盛, 今永直也, 寺尾信宏, 古泉英貴
    • Organizer
      第74回日本臨床眼科学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Clinical factors for loculation of fluid central serous chorioretinopathy2020

    • Author(s)
      Imanaga N, Terao N, Sawaguchi K, Nakamine S, Tamashiro T, Wakugawa S, Koizumi H
    • Organizer
      第59回日本網膜硝子体学会総会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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