Quantification of Metamorphopsia
| Project/Area Number |
15K10853
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ophthalmology
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| Research Institution | Kindai University |
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Principal Investigator |
KOIKE Eiko 近畿大学, 医学部附属病院, 講師 (90319715)
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| Co-Investigator(Kenkyū-buntansha) |
下村 嘉一 近畿大学, 医学部, 教授 (20162737)
松本 長太 近畿大学, 医学部, 教授 (70229558)
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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 |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 変視症 / M-CHARTS / 黄斑上膜 / 加齢黄斑変性 / コンピュータシミュレーシ / 視野 / コンピューターディスプレイ / 変視症アンケート / 黄斑前膜 / 黄斑円孔 |
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| Outline of Final Research Achievements |
M-CHARTS is an easy-to-use device for quantification of metamorphopsia. Metamorphopsia measured using the M-CHARTS can well reflect the subjective perception of metamorphopsia in patients with macular diseases.
To understand how metaphophosia is perceived in normal eyes, on the original M-CHARTS, we first inspected how much distortion presented by dots in a line was necessary for a normal eye to recognize the distortion. Using a high resolution monitor, we further devised a computer simulation to investigate the visual field representation of metamorphopsia. The results for the normal eyes showed that different metamorphopsia scores were obtained for different areas of the retina although the photoreceptors in the retina might have shown equivalent amount of distortion. Our finding can serve as the basic data when assessing metamorhposia for the visual field.
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Report
(4 results)
Research Products
(10 results)
