Kinetic visual field with changing contrast and brightness

Hidenori Hiraki, Satoshi Takahashi, Jinglong Wu

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Dynamic perimetry is the area in which a subject is able to recognize a moving target by eye. It is used in medical tests to diagnose glaucoma and cataracts. Evaluation of the kinetic visual field involves the use of an isopter. In a previous study, the area of the kinetic visual field was shown to become smaller with decreased target brightness and advancing age (Hashimoto, 2003). Moreover, the fields in the left and right eyes are the same. It is also known that dementia patients experience symptoms that lower their ability to recognize objects under conditions of weak contrast between the target object and the background (Trick, Trick, Morris, & Wolf, 1995). However, the exact relationship between this contrast and their visual fields is unknown. In this study, the areas of kinetic visual field were measured quantitatively on normal people as a fundamental study of the early detection of dementia in patients. These results were reported using an improved Goldmann perimeter, which has an electric slider to operate targets at constant speeds.

Original languageEnglish
Title of host publicationEarly Detection and Rehabilitation Technologies for Dementia
Subtitle of host publicationNeuroscience and Biomedical Applications
PublisherIGI Global
Pages72-79
Number of pages8
ISBN (Print)9781609605599
DOIs
Publication statusPublished - Dec 1 2011

ASJC Scopus subject areas

  • Health Professions(all)

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    Hiraki, H., Takahashi, S., & Wu, J. (2011). Kinetic visual field with changing contrast and brightness. In Early Detection and Rehabilitation Technologies for Dementia: Neuroscience and Biomedical Applications (pp. 72-79). IGI Global. https://doi.org/10.4018/978-1-60960-559-9.ch009