Field of view

Attention or Fixierfeld is the generic term for those regions, all with the eyes fixable visual objects contained in the outer space. The field of view is classified according to

• Direction (horizontal, vertical),
• Number of eyes (monocular, binocular and multiocular for some animals and machines),
• ergonomic quality (optimal, maximum).

The following types of fields of vision are distinguished in humans:

• the monocular field of vision, which results from the excursion ability (maximum mobility ) of the right and left eye with a steady head and body position ; an adduction and abduction is usually possible by approx. 50 °, a depression can be up to 60 °, an elevation rarely more than 45 °.
• the binocular field of view, the area in which both eyes can fixate foveolarly with a calm head and body posture
• the fusion field of view , in which binocular single vision is possible with a steady head and body posture
• the field of vision , which is the sum of the perceptions that can be achieved with all eye movements and maximum head and body rotations with an unchanged standing position
• the field of view in use , which consists of eye movements of only about 20 ° and is supported by additional head movements.

Demarcation

From the field of view that is the visual field to distinguish. In contrast to the field of vision, this is checked with a steady head position and a straight, motionless gaze and takes into account areas that are not directly fixed . In addition, the field of vision is a result of different levels of sensitivity, which is not the case with the field of vision.

The field of vision also has nothing to do with the field of vision. This denotes the limits of the beam space on the object side of an optical instrument, such as a camera, for example.

Individual evidence

1. ^ Herbert Kaufmann: Strabismus. With the collaboration of W. de Decker et al., Stuttgart: Enke, 1986, ISBN 3-432-95391-7
2. ^ Karl Mütze, Institute for Optics and Spectroscopy: Brockhaus ABC of Optics . FABrockhaus Verlag, Leipzig 1961.

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