In a false-color retinal thickness map, which color typically indicates the foveal depression (thinned area) in a normal eye?

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Multiple Choice

In a false-color retinal thickness map, which color typically indicates the foveal depression (thinned area) in a normal eye?

Explanation:
On a false-color retinal thickness map, color encodes how thick the retina is: cool colors for thinner tissue and warm colors for thicker tissue. The foveal depression is the thinnest part of the retina in a normal eye, so it appears in the coolest color on the scale, deep blue. The surrounding parafoveal areas are thicker and thus show warmer colors like red or yellow, highlighting the contrast with the fovea. White isn’t typically used to denote thinning on standard thickness maps, so the deep blue color best indicates the foveal thinning.

On a false-color retinal thickness map, color encodes how thick the retina is: cool colors for thinner tissue and warm colors for thicker tissue. The foveal depression is the thinnest part of the retina in a normal eye, so it appears in the coolest color on the scale, deep blue. The surrounding parafoveal areas are thicker and thus show warmer colors like red or yellow, highlighting the contrast with the fovea. White isn’t typically used to denote thinning on standard thickness maps, so the deep blue color best indicates the foveal thinning.

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