In OCT reports, thickness maps provide what type of data?

In OCT reports, thickness maps provide what type of data?

• A. Qualitative data
• B. Quantitative data
• C. Descriptive data
• D. Inferential data

Answer: (B)

Thickness maps provide quantitative data—the actual numerical measurements of retinal thickness across a region, usually in micrometers. Each point on the map reflects a measured thickness value, obtained by segmenting retinal layer boundaries and calculating the distance between them. This lets you quantify how thick different areas are, compare to normative values, and monitor changes over time. The color shading helps visualize those numbers, but the essential content is numerical. Qualitative data would be labels like normal or thickened, descriptive data would be text descriptions, and inferential data involve drawing conclusions about populations; thickness maps themselves are numerical, hence quantitative.

Thickness maps provide quantitative data—the actual numerical measurements of retinal thickness across a region, usually in micrometers. Each point on the map reflects a measured thickness value, obtained by segmenting retinal layer boundaries and calculating the distance between them. This lets you quantify how thick different areas are, compare to normative values, and monitor changes over time. The color shading helps visualize those numbers, but the essential content is numerical. Qualitative data would be labels like normal or thickened, descriptive data would be text descriptions, and inferential data involve drawing conclusions about populations; thickness maps themselves are numerical, hence quantitative.