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High precision determination of intraocular lens power using whole eye segment OCT

Research Project

Project/Area Number 26350512
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionKitasato University

Principal Investigator

FURUKAWA Hiroyuki  北里大学, 一般教育部, 講師 (20406888)

Co-Investigator(Kenkyū-buntansha) 廣岡 秀明  北里大学, 一般教育部, 准教授 (60296522)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsOCT / 光干渉断層計測 / 生体計測 / 医用生体工学 / 眼科用検査装置 / 眼球計測
Outline of Final Research Achievements

We evaluated the method of predicting the postoperative intraocular lens position (IOL) based on the whole lens images taken using whole anterior segment optical coherence tomography (AS-OCT). In this study, 178 eyes from 99 patients who underwent cataract surgery were imaged and analyzed. The anterior capsule, lens equator, and posterior capsule depths were determined from the crystalline lens image, and postoperative IOL positions were predicted using these parameters. Postoperative refractive errors calculated using predicted IOL position were compared with those calculated using the Haigis, Hoffer Q, Holladay 1, and SRK/T formulas. As a result, we found that predicting the postoperative IOL position using the whole lens image in the IOL power calculation was more accurate than that using the Hoffer Q and SRK / T equations. And, we also developed swept-source OCT system for in vivo 3D imaging of the whole anterior segment and retina.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (9 results)

All 2017 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results) Patent(Industrial Property Rights) (7 results)

  • [Journal Article] Prediction of intraocular lens position based on crystalline lens shape measured with anterior segment optical coherence tomography2017

    • Author(s)
      Shuntaro Tsunehiro, Kimiya Shimizu, Nobuyuki Shoji, Hideaki Hiro-Oka, Hiroyuki Furukawa
    • Journal Title

      The Kitasato Medical Journal

      Volume: 47 Pages: 110-117

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] OCTを用いた統合型眼球イメージング装置の開発2016

    • Author(s)
      古川裕之、廣岡秀明、常廣俊太郎、清水公也
    • Organizer
      生体医工学シンポジウム2016
    • Place of Presentation
      旭川市大雪クリスタルホール国際会議場(北海道・旭川市)
    • Year and Date
      2016-09-18
    • Related Report
      2016 Research-status Report
  • [Patent(Industrial Property Rights)] 光干渉断層撮影装置及び光干渉断層撮影方法2016

    • Inventor(s)
      古川裕之
    • Industrial Property Rights Holder
      古川裕之
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2016-235233
    • Filing Date
      2016-12-02
    • Related Report
      2016 Research-status Report
  • [Patent(Industrial Property Rights)] 眼球計測装置、眼球計測方法2015

    • Inventor(s)
      古川裕之、清水公也、廣岡秀明
    • Industrial Property Rights Holder
      古川裕之、清水公也、廣岡秀明
    • Industrial Property Rights Type
      特許
    • Filing Date
      2015-06-26
    • Acquisition Date
      2016-07-22
    • Related Report
      2016 Research-status Report
  • [Patent(Industrial Property Rights)] 波長走査型光干渉断層撮影装置及び断層撮影方法2015

    • Inventor(s)
      古川裕之
    • Industrial Property Rights Holder
      古川裕之
    • Industrial Property Rights Type
      特許
    • Filing Date
      2015-06-17
    • Acquisition Date
      2016-08-19
    • Related Report
      2016 Research-status Report
  • [Patent(Industrial Property Rights)] 波長走査型光干渉断層撮影装置及び断層撮影方法2015

    • Inventor(s)
      古川裕之
    • Industrial Property Rights Holder
      古川裕之
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2015-122155
    • Filing Date
      2015-06-17
    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] 眼球計測装置、眼球計測方法2015

    • Inventor(s)
      古川裕之 清水公也 廣岡秀明
    • Industrial Property Rights Holder
      古川裕之 清水公也 廣岡秀明
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2015-129055
    • Filing Date
      2015-06-26
    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] 位置検出装置2014

    • Inventor(s)
      古川裕之 清水公也 廣岡秀明
    • Industrial Property Rights Holder
      古川裕之 清水公也 廣岡秀明
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2014-144551
    • Filing Date
      2014-07-14
    • Related Report
      2014 Research-status Report
  • [Patent(Industrial Property Rights)] 距離情報取得装置2014

    • Inventor(s)
      古川裕之 清水公也 廣岡秀明
    • Industrial Property Rights Holder
      古川裕之 清水公也 廣岡秀明
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2014-144552
    • Filing Date
      2014-07-14
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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