| Project/Area Number |
13671859
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ophthalmology
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| Research Institution | Kinki University |
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Principal Investigator |
OKUYAMA Sachiko Kinki University, Ophthalmology, Assistant Professor, 医学部, 講師 (40268438)
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| Co-Investigator(Kenkyū-buntansha) |
SHIMOMURA Yoshikazu Kinki University, Ophthalmology, Professor, 医学部, 教授 (20162737)
MATSUMOTO Chota Kinki University, Ophthalmology, Associate Professor, 医学部, 助教授 (70229558)
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| Project Period (FY) |
2001 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
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| Keywords | Visual Field / Octopus 101 / Automated Kinetic Perimetry / Goldmann Perimeter / Goldmann視野計 / Octopus101 / ゴールドマン視野計 |
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| Research Abstract |
In the early period of the development of automated perimetry, automated kinetic methods were developed and tried for evaluating visual field loss. However, they had many problems, so that they have not been used clinically for a long time.
In this study, we developed a new kinetic program (program K) using Octopus 101 automated perimeter. In the initial session of this program, abnormal areas of initial isopters were automatically detected by taking and evaluating the angles constructed with every 3 continuous test points. In the second session, additional test locations in abnormal areas were automatically tested to obtain the details of isopters. The ea** and advanced stages of glaucoma patients were tested using both our Octopus 101 kinetic program K and a Goldmann manual perimeter. We compared the results of our automated kinetic perimetry with program K and those of the manual perimetry using a Goldmann perimeter. In most of our patients, isopters of our automated kinetic perimetry were almost similar to those of manual perimetry. We also evaluated the influence of the stimulus velocity on the results of automated kinetic perimetry of normal subjects in various age groups. The best conditions of stimulus velocity were 2° /s for detecting the inner isopters and 6° /s for the peripheral isopters in all age groups.
Our automated kinetic perimetry using Octopus 101 is a useful method for evaluating visual field loss clinically. We solved the problem of spurious spikes as part of isopters which had been frequently obtained using previous automated kinetic perimeters. We will continue to study some matters of automated kinetic perimetry, such as the relationship between test duration and reliability, to improve our test algorisms.
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