May 31, 2015 · The first isopter, mapping the farthest peripheral vision, requires the largest and brightest target V4e. Another isopter is mapped in the central ‘ ’ 30° of vision, and a third isopter is …

Dec 29, 2025 · The meaning of ISOPTER is a contour line in a representation of the visual field around the points representing the macula that passes through the points of equal visual acuity.

When the patient perceives the particular test object, a set of visual threshold points are plotted by the perimetrist. The line that connects these similar visual thresholds is called an isopter.

In 1872, Scherk introduced a half sphere perimeter that was the forerunner of the bowl we now use. Julius Hirschberg stubbornly stuck with a tangent screen marked with rings out to 45°.

isopter In the determination of visual fields, it is the contour line representing the limits of equal retinal sensitivity to a given test target. See visual field; perimeter.

Sep 27, 2024 · isopter (plural isopters) A line on a graph or diagram showing places of equal visual acuity Any termite of the infraorder Isoptera

Aug 28, 2019 · There are many methods of testing perimetry, which have evolved with technology and greater understanding of neuroanatomy and functional vision. Tagged: kinetic perimetry, static …

Therefore, the use of isopter V should be restricted to patients with moderate or severe vision loss who are unable to use the isopter III and the findings should be converted by 14.4 points.

Isopter "1. The boundary between the area of non-visibility and the field of visibility of a particular stimulus. 2. A line in a representation of the visual field connecting points with the same threshold. 3. …

Dec 4, 2025 · So, remember, an isopter is all about connecting equal values of intensity on a map. It’s a visual tool that translates complex data into a more comprehensible format, allowing for quicker …