TOP > 外国特許検索 > VISUAL FIELD MEASURING METHOD, VISUAL FIELD MEASURING APPARATUS, AND OPTOTYPE

VISUAL FIELD MEASURING METHOD, VISUAL FIELD MEASURING APPARATUS, AND OPTOTYPE

外国特許コード F170009005
整理番号 (S2015-1988-N69)
掲載日 2017年3月29日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2016JP072647
国際公開番号 WO 2017022757
国際出願日 平成28年8月2日(2016.8.2)
国際公開日 平成29年2月9日(2017.2.9)
優先権データ
  • 特願2015-153722 (2015.8.3) JP
発明の名称 (英語) VISUAL FIELD MEASURING METHOD, VISUAL FIELD MEASURING APPARATUS, AND OPTOTYPE
発明の概要(英語) [Problem] To provide a visual field measuring method and visual field measuring apparatus which are able to reduce the burden on a tested person and a testing technician, and to provide an optotype that enables minimum separable acuity obtained as a test result to coincide with a retinal resolution, and is suited to automatic measuring and the visual field measuring method and visual field measuring apparatus according to the present invention.
[Solution] This method for measuring the visual field comprises: a reference optotype display step of causing a test optotype to be displayed at a reference position BP located in the center of a display unit 2; a reference input step of causing the tested person to provide an input of the fact that the tested person has recognized the test optotype displayed in the reference optotype display step; a peripheral optotype display step of causing a test optotype to be displayed at a position different from the reference position BP if the fact that the test optotype is recognized is inputted in the reference input step; and a peripheral input step of causing the tested person to provide an input of the fact that the tested person has recognized the test optotype displayed in the peripheral optotype display step. A reaction time from the displaying of the test optotype in the peripheral optotype display step to the input of the fact that the test optotype is recognized in the peripheral input step is measured.
従来技術、競合技術の概要(英語) BACKGROUND ART
The visual function test in the ophthalmology medical, understand the pathological condition of the eye, determine the course of therapy, such as verification of a therapeutic effect in order to obtain an objective determination, an important role. In general, the visual function is tested, the input of the visual information from the eye as a function of the visual acuity, visual field, color vision and the like.
As an example of inspection of the visual acuity of the visual function are generally been performed, the visual acuity and in a broad sense, to recognize the existence of the object, which is the ability to identify what is meant (form-sense). Is the visual acuity (form-sense), 'authorization threshold minimum view', 'minimum separation threshold', 'minimum flexible', 'sub pattern vision' are classified into one of the 4. For measuring the general vision, 'the minimum separation threshold' is measured.
The 'minimum separation threshold' to the measurement of, in general, the Landolt ring is used. Is the Landolt ring, a doughnut-shaped notch in a part of the rear wheels so that it is provided, can recognize the existence of the cut depending on whether the measured minimum separation threshold. More specifically, to show the Landolt rings of different size in a subject can recognize the position of the notch thereof from the size. Then, the minimum size of the notch position in the gap of the notch in the Landolt rings, can be the threshold of a minimum separation of the subject.
In addition, the visual-field examination, glaucoma and retinitis pigmentosa, diabetic retinopathy, retinal detachment, macular degeneration or diseases such as diseases is performed to determine the degree of progression. Such field inspection is, when one point is visible around the visual field range is measured. Specifically, the face of the visual field is fixed, the display unit of the subject within the visual field of the center of the board mark causes shown. In this state, the light around the display appear and the like, when the light is visible, of causing the buzzer to the subject. In this manner, the subject can recognize to which position of the light can be determined by checking whether or not, and the field being examined by the missing portion (http://medical-checkup.info/article/43671142.html http://www.nichigan.or.jp/public/disease/ryokunai _ryokunai.jsp reference).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION EHIME UNIVERSITY
  • 発明者(英語)
  • KAWAHARA, Minoru
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
四国TLOは四国内20大学・高専のシーズをご紹介しております。シーズの詳細内容につきましては下記までお問い合わせください。
お問い合わせをお待ちしております。

PAGE TOP

close
close
close
close
close
close