Blickfeldgröße

Blickfeldgröße refers to the extent of the visual field that a person can perceive. It is the sum of what can be seen without moving the eye or head. This visual field is often described in terms of degrees of arc, with a typical healthy human visual field extending to about 160 degrees horizontally and 135 degrees vertically. The central part of the visual field, known as the foveal or macular region, is responsible for sharp, detailed vision, while the peripheral visual field provides motion detection and awareness of surroundings.

Variations in Blickfeldgröße can occur due to various factors. Age can lead to a gradual reduction in the visual field. Certain medical conditions, such as glaucoma, retinal detachment, optic nerve damage, or neurological disorders, can cause significant loss or constriction of the visual field. These conditions can affect different parts of the visual pathway, from the eye itself to the brain's visual processing centers.

Assessment of Blickfeldgröße is typically performed using a visual field test, also known as perimetry. This diagnostic tool helps to map out the extent of a person's vision and identify any blind spots or areas of reduced sensitivity. The results of these tests are crucial for diagnosing and monitoring eye diseases, as well as for understanding the functional impact of neurological conditions on a person's ability to navigate and interact with their environment. Understanding Blickfeldgröße is important for ophthalmologists, neurologists, and low vision specialists in providing appropriate care and rehabilitation.