Potential Phototoxicity of Indocyanine Green in Retinal Pigment Epithelial Cells after Angiography under Ambient Illumination

Figure 4

Changes of absorption spectra of ICG cultured with or without cells and/or illumination. (a) Absorption spectra of PBS-based media containing 10 μg/mL ICG after a 24-hour incubation with or without cells cultured in the dark or under illumination. (b, c) Bright-field micrographs in cells cultured with or without 10 μg/mL ICG in the dark or under illumination.