Retromode imaging for choroidal osteoma

Published:March 26, 2022DOI:
      A 48-year-old female presented with a yellowish choroidal lesion with scalloped margins suggestive of choroidal osteoma (Fig. 1A). The retromode image acquired using a near-infrared reflectance light (790 nm) allowed precise delineation of the lesion (Fig. 1B). In contrast, the green-light autofluorescence image (532 nm) showed areas of hypofluorescence and speckled autofluorescence suggestive of overlying retinal pigment epithelium disruption but was not sensitive enough to reveal the lesion edges (Fig. 1C). Optical coherence tomography showed the typical sponge-like pattern of the choroidal osteoma (Fig. 1D, asterisk). Using a longer-wavelength light enabling deeper penetration, retromode imaging allowed accurate assessment of the size of choroidal osteomas.
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