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Carotenoid macular pigments aid human vision and protect against advanced age-related macular degeneration (AMD). Recent work has shown that visible light Optical Coherence Tomography (OCT) can form depth-resolved images of macular pigments in the human retina. Here we compare superluminescent diodes (SLDs) at a range of center wavelengths from 452 nm to 637 nm to assess their suitability to visualize and quantify macular pigments. We consider light safety, ocular transmission (image signal-to-noise ratio), and macular pigment absorption contrast. We conclude that cyan and short wavelength green central wavelengths should provide a good balance of these competing considerations.
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