perimetry

perimetry
1. The determination of the limits of the visual field. 2. The mapping of the sensitivity contours of the visual field. [G. perimetros, circumference]
- computed p. determination of the visual field by means of a programmed routine of static stimuli.
- flicker p. a technique of p. using the criterion of critical fusion frequency. SYN: flicker fusion frequency technique.
- kinetic p. mapping of the visual field by using a moving rather than a static test object.
- quantitative p. a plotting of the visual field in isopters of equal retinal sensitivity.
- scotopic p. p. of a dark-adapted eye.
- static p. determination of the visual field by using test objects at fixed positions and gradually increasing luminance to the threshold of visibility.

* * *

pe·rim·e·try pə-'rim-ə-trē n, pl -tries examination of the eye by means of a perimeter
peri·met·ric .per-ə-'me-trik adj

* * *

pe·rim·e·try (pə-rimґə-tre) [peri- + -metry] determination of the extent of the peripheral visual field by use of a perimeter; cf. perioptometry.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Perimetry — or campimetry is the systematic measurement of differential light sensitivity in the visual field by the detection of the presence of test targets on a defined background. Visual field testing can be performed clinically with confrontational… …   Wikipedia

  • Perimetry — Per*im e*try, n. The art of using the perimeter; measurement of the field of vision. [1913 Webster] …   The Collaborative International Dictionary of English

  • perimetry — [pə rim′ə trē] n. the testing of the scope of vision by means of a perimeter * * * …   Universalium

  • perimetry — [pə rim′ə trē] n. the testing of the scope of vision by means of a perimeter …   English World dictionary

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  • perimetry — noun The systematic measurement of light sensitivity in the visual field by the detection of the presence of test targets on a defined background. Syn: campimetry …   Wiktionary

  • perimetry — n. measuring the outer boundary of a figure or area, measuring the perimeter …   English contemporary dictionary

  • perimetry — pe·rim·e·try …   English syllables

  • perimetry — noun see perimeter I …   Useful english dictionary

  • Meridian (perimetry, visual field) — This article is about the perimetry concept. For other uses of the word, see Meridian. Meridian is used in perimetry and in specifying visual fields. According to IPS Perimetry Standards 1978 (2002): Perimetry is the measurement of [an observer… …   Wikipedia

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