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Ganglion cell layer, inner plexiform layer and choroidal thickness measurements. (A). Scanning laser ophthalmoscopy image of the macula. Green line is showing the cross-section of a optic coherence tomography (OCT) B-scan like in B and C. (B). OCT B-scan of a patient with primary insomnia. (C). OCT B-scan of a healthy control. *: Ganglion cell layer, ¥: Inner plexiform layer, †: Choroid.
