Gaze feedback system for retinal prostheses
| Project/Area Number |
15K16353
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 人工網膜 / 眼球運動 / 視線解析 / 視線検出方法 / 視線計測 / 電気刺激 / 人工臓器 / 人工視覚 / 埋込型医療機器 / ブレインマシンインターフェース / 視覚再生 |
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| Outline of Final Research Achievements |
Retinal prostheses usually use an external camera, which fixed on a head-mounted device. Therefore, it is impossible to change the visual field of prosthetic vision by eye movement. To bring the prosthetic vision closer to natural vision, we proposed gaze feedback system for prosthetic vision. First, we demonstrated the efficacy of the gaze feedback system for improving eye-hand coordination. Then, we developed a prototype system of retinal prosthesis with a gaze feedback system. However, several issues of the prototype were revealed by our study. The main issues were long processing time and heavy device weight. To overcome these issues, we proposed a new eye-tracking method that estimates direction of gaze using stimulus artifacts generated by a retinal prosthesis. To confirm its feasibility, we evaluated the accuracy of the eye-tracking method using animal models. These findings from this study demonstrated that gaze direction was able to be estimated using the proposed method.
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Report
(4 results)
Research Products
(50 results)
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[Journal Article] One-Year Outcome of 49-Channel Suprachoroidal-Transretinal Stimulation Prosthesis in Patients With Advanced Retinitis Pigmentosa.2016
Author(s)
Fujikado T, Kamei M, Sakaguchi H, Kanda H, Endo T, Hirota M, Morimoto T, Nishida K, Kishima H, Terasawa Y, Oosawa K, Ozawa M, Nishida K.
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Journal Title
Invest Ophthalmol Vis Sci.
Volume: 57(14)
Issue: 14
Pages: 6147-6157
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Development of a Second-Generation Device for Suprachoroidal-Transretinal Stimulation2017
Author(s)
Kanda H, Kamei M, Sakaguchi H, Endo T, Hirota M, Morimoto T, Nishida K, Kishima H, Miyoshi T, Terasawa Y, Osawa K, Ozawa M, Fujikado T
Organizer
39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Related Report
Int'l Joint Research / Invited
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[Presentation] 49極STS型人工網膜の慢性臨床研究の結果2016
Author(s)
不二門 尚, 瓶井 資弘, 貴島晴彦, 森本壮, 神田寛行, 広田 雅和, 坂口裕和, 西田 健太郎, 遠藤 高生, 圓尾 知之, 小澤 素生, 大澤 孝治, 西田 幸二
Organizer
第120回日本眼科学会総会
Place of Presentation
仙台国際センター
Related Report
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[Presentation] One-Year Outcomes of 49-Channel Suprachoroidal-Transretinal Stimulation(STS) Retinal Prosthesis in Patients with Adcanced Retinitis Pigmentosa.2016
Author(s)
Fujikado Takashi, Kamei M, Kishima H, Morimoto T, KandaHiroyuki, Sakaguchi H, Nishida K, Endo T, Osawa K, Ozawa M
Organizer
ARVO2016
Place of Presentation
Seattle, USA
Related Report
Int'l Joint Research
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[Presentation] Clinical Trial of 49-Channel STS Retinal Prosthesis for Advanced RP Patients.2016
Author(s)
Fujikado Takashi, Kamei M, Sakaguchi H, Kanda H, Morimoto T, Endo Takao, Nishida Ke, Kishima H, Hirota M, Oosawa K, Ozawa M, NishidaKo
Organizer
9th Biennial World Research Congress on the Relationship between Neurobiology and Nano-Electronics Focusing on Artificial Vision
Place of Presentation
USA, Dearborn
Related Report
Int'l Joint Research
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[Presentation] Development of a second-generation suprachoroidal-transretinal stimulation retinal prosthesis.2016
Author(s)
Kanda H, KameiM, Sakaguchi H, Endo T, Hirota M, Morimoto T, Nishida K, Kishima H, Miyoshi T, Fujikado T
Organizer
medical bionics
Place of Presentation
University of Queensland, Australia
Related Report
Int'l Joint Research / Invited
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[Presentation] Artificial Vision2016
Author(s)
Fujikado Takashi, Kamei M, Kishima H, Morimoto T, KandaH, Sakaguchi H, Nishida K, Endo T, Lohmann TK, Maruo T, Hirota M, Oosawa K, Ozawa M
Organizer
The 3rd International Symposium on Cognitive Neuroscience Robotics
Place of Presentation
千里ライフサイエンスセンター
Related Report
Int'l Joint Research / Invited
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[Presentation] 人工網膜の現状2015
Author(s)
神田寛行、不二門 尚
Organizer
第5回CiNetシンポジウム
Place of Presentation
東京
Year and Date
2015-06-17
Related Report
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