| 释义 |
visual field
visual fieldn. The space or range within which objects are visible to the immobile eyes at a given time. Also called field of vision.visual field n (Physiology) the whole extent of the image falling on the retina when the eye is fixating a given point in space field′ of vi′sion
n. the entire view encompassed by the eye trained in any particular direction. Also called visual field. [1930–35] Thesaurus| Noun | 1. |  visual field - all of the points of the physical environment that can be perceived by a stable eye at a given momentfield of regard, field of visionvisual percept, visual image - a percept that arises from the eyes; an image in the visual system |
visual field
visual fieldThe angular extent of space which can be perceived when the head and eyes are kept fixed.visual field
field [fēld] 1. an area or open space, as an operative field or visual field.2. a range of specialization in knowledge, study, or occupation.3. in embryology, the developing region within a range of modifying factors.auditory field the space or range within which stimuli will be perceived as sound.disturbed energy field a nursing diagnosis defined as a disruption of the flow of energy surrounding a person's being that results in disharmony of the body, mind, and/or spirit.energy field the flow of energy surrounding a person.extended field in radiation therapy, such as for lymphoma" >malignant lymphoma, an area of irradiation beyond the field" >involved field. See also under irradiation.high-power field the area of a slide visible under the high magnification system of a microscope.individuation field a region in which an organizer influences adjacent tissue to become a part of a total embryo.inverted Y field in radiation therapy, such as for lymphoma" >malignant lymphoma, a circumscribed area of irradiation below the diaphragm, covering the spleen, extending down the midline, and branching inferiorly to form tails across the inguinal areas.involved field in radiation therapy, such as for lymphoma" >malignant lymphoma, the irradiated area when irradiation has been limited to sites of detectable macroscopic disease. See also under irradiation.low-power field the area of a slide visible under the low magnification system of a microscope.magnetic field that portion of space about a magnet in which its action is perceptible.mantle field in radiation therapy, such as for lymphoma" >malignant lymphoma, a circumscribed area of irradiation around the shoulders and chest, including the neck, clavicular regions, axillae, and mediastinum. See also under irradiation.morphogenetic field an embryonic region out of which definite structures normally develop.operating field (operative field) an isolated area where surgery is performed; it must be kept sterile by aseptic techniques (see asepsis" >surgical asepsis). Called also surgical field.sterile field an field" >operative field that is properly sterile according to asepsis" >surgical asepsis. It includes having all furniture and equipment covered with sterile drapes and all personnel being properly attired.surgical field operative field.visual field (F) (vf) the area within which stimuli will produce the sensation of sight with the eye in a straight-ahead position.vis·u·al field (F), the area simultaneously visible to one eye without movement; often measured by means of a bowl perimeter located 330 mm from the eye.visual fieldn. The space or range within which objects are visible to the immobile eyes at a given time. Also called field of vision.vis·u·al field (F) (vizh'ū-ăl fēld) The area simultaneously visible to one eye without movement; often measured by means of a bowl perimeter located 330 mm from the eye.  VISUAL FIELDvisual fieldThe area within which objects may be seen when the eye is fixed. Synonym: field of vision See: illustration; perimetrySee also: fieldAcronymsSeeviewfindervisual field
Related to visual field: perimetry, visual acuity, Visual pathwaySynonyms for visual fieldnoun all of the points of the physical environment that can be perceived by a stable eye at a given momentSynonyms- field of regard
- field of vision
Related Words- visual percept
- visual image
|