A normal foveal thickness map is represented by which color?

A normal foveal thickness map is represented by which color?

• A. Blue
• B. Red
• C. Green
• D. Yellow

Answer: (A)

In an OCT foveal thickness map, color shows how the measured thickness compares to a normal reference. The color scale is designed so that a value within the normal range is given a specific color, making it easy to spot areas of concern at a glance. On this display, the normal foveal thickness is represented by blue, so a blue map indicates the fovea falls within expected, healthy limits. If thickness were outside normal, the map would shift to other colors on the scale (often warmer or more intense colors) to signal thicker or thinner tissue relative to normals. This is why blue is the best choice for a normal foveal thickness.

In an OCT foveal thickness map, color shows how the measured thickness compares to a normal reference. The color scale is designed so that a value within the normal range is given a specific color, making it easy to spot areas of concern at a glance. On this display, the normal foveal thickness is represented by blue, so a blue map indicates the fovea falls within expected, healthy limits. If thickness were outside normal, the map would shift to other colors on the scale (often warmer or more intense colors) to signal thicker or thinner tissue relative to normals. This is why blue is the best choice for a normal foveal thickness.