Measurement for field of vision with unrestrained head for the application of physiological anthropology

头部不受约束视野测量在生理人类学中的应用

• 批准号: 22657067
• 负责人: KOTANI Kentaro
• 金额: $ 1.99万
• 依托单位: Kansai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22657067/
• 关键词: 視野検査; 緑内障; 眼球運動

This study introduces a novel technique for estimating visual field by using overlapped fixation patterns obtained by amounts of displacement in voluntary eye movements during searching-tracking trials, as an alternative screening medical device for visual field examination. Proposed system was evaluated by glaucoma patients, in order to study whether or not the proposed system can be used as a visual field detection device for screening. As a result, the proposed system detected the visual field abnormality to a certain extent. However, there were some cases that detection of Mariotte blind spots was inaccurately performed. The experimental results revealed that there was room to reconsider our understanding regarding the effect of ptosis, overlapped with eye sight as well as calibration of the display position to the correct location to be examined. Results of the evaluation experiment indicated that this proposed system has a potential to be used as a visual field examination device … More for screening. We have proposed a visual field examination method using voluntary eye movement to determine the visual area. In order to evaluate the applicability of the proposed system to visual field screening, we compared the results of visual field examination of glaucoma patients obtained by the proposed system and by HFA. We obtained the following results. (1) Glaucomatous visual field effects can be detected. (2) Since many subjects had recognition in the Mariotte blind spot, we concluded that there is room for improvement regarding eyelid elevation, the test protocol, the target presentation method. For further improvement, a method is needed to accurately estimate the developmental stages of glaucomatous visual field defects by means of threshold tests. Glaucomatous visual field defects include those called absolute scotomata, such as the Mariotte blind spot, in which visual targets cannot be recognized in any case, and those called relative scotomata, in which visual targets can be recognized vaguely. Since the proposed system uses visual targets of a single kind, absolute scotomata cannot be distinguished from relative scotomata. For differentiation between the two types of scotomata, one can assume that more detailed evaluation of glaucomatous visual field defects can be achieved by gradual variation of the target-background luminance ratio to acquire visibility data ; in this case, the proposed system would be more useful for follow-up in glaucoma treatment. Less

这项研究介绍了一种新的技术，利用搜索-跟踪试验中自主眼动的移动量获得的重叠注视模式来估计视野，作为视野检查的替代筛查医疗设备。青光眼患者对所提出的系统进行了评估，以研究所提出的系统是否可以用作视野检测设备进行筛查。结果表明，该系统在一定程度上检测到了视野的异常。然而，有一些情况下，马里奥特盲点的检测是不准确的。实验结果表明，对于上睑下垂与视力重叠的影响以及将显示位置校准到正确的检查位置，我们有重新考虑的空间。评价实验结果表明，该系统具有作为视野检查设备…的潜力更多的是为了筛查。我们提出了一种利用自主眼球运动来确定视野区域的视野检查方法。为了评估该系统在视野筛查中的适用性，我们比较了该系统和HFA对青光眼患者的视野检查结果。我们得到了以下结果。(1)可检测到青光眼视野效应。(2)由于许多受试者对Mariotte盲点有认知，因此我们认为在眼睑抬高、测试规程、目标呈现方法等方面仍有改进的空间。为了进一步改进，需要一种方法来通过阈值测试准确地估计青光眼视野缺陷的发育阶段。青光眼的视野缺陷包括所谓的绝对暗点，如Mariotte盲点，其中视觉目标在任何情况下都无法识别，以及称为相对暗点，其中视觉目标可以被模糊识别。由于所提出的系统使用单一种类的视觉目标，因此不能区分绝对暗点和相对暗点。为了区分这两种类型的暗点，可以假设通过逐渐改变目标-背景亮度比来获得能见度数据，可以更详细地评估青光眼视野缺陷；在这种情况下，所提出的系统将更有助于青光眼治疗的后续治疗。较少

项目成果

Introduction and current research challenges in Ecological Interface Design

生态界面设计的介绍和当前的研究挑战

• 发表时间: 2011
• 作者: Kentaro Kotani;Hironobu Uchiyama;Junichi Kurata;Satoshi suzuki;Takafumi Asao;Naoya Hara
• 通讯作者: Naoya Hara

Visual Field Screening System by Using Overlapped Fixation Patterns

使用重叠注视模式的视野筛查系统

• 发表时间: 2012
• 期刊: Electronics and Communications in Japan
• 影响因子: 0.3
• 作者: Kentaro KOTANI;Ryota YOSHIKAWA;Toshiki TAMURA;Takafumi ASAO;Tetsuya SUGIYAMA;Mari UEKI;Shota KOJIMA;Maho SHIBATA;and Tsunehiko IKEDA
• 通讯作者: and Tsunehiko IKEDA

Visual field measurement system for medical screening by using overlapped fixation patterns

使用重叠固定模式进行医学筛查的视野测量系统

• 发表时间: 2011
• 作者: Ryota Yoshikawa;Kentaro Kotani;Takafumi Asao;TetsuyaSugiyama;Mari Ueki;Syota Kojima;Maho Shibata;Tunehiko Ikeda
• 通讯作者: Tunehiko Ikeda

Information Processing for Constructing Tactile Perception of Motion : A MEG Study

用于构建运动触觉感知的信息处理：一项 MEG 研究

• 发表时间: 2011
• 作者: Ayumi Nasu;Kentaro Kotani;Takafumi Asao;Seiji Nakagawa
• 通讯作者: Seiji Nakagawa

Risk evaluation for flood evacuation by using surface electromyography

利用表面肌电图进行洪水疏散风险评估

• 发表时间: 2011
• 作者: Kentaro Kotani;TaisukeIshigaki;Yasuyuki Baba;Keiichi Toda;Takamumi Asao
• 通讯作者: Takamumi Asao