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(a) Photographic, (b) horizontal photoacoustic, (c) vertical ultrasound, and (d) vertical photoacoustic images of an eye of a living rabbit. The area of the eye imaged in (b) is outlined by the red boundary (dotted box) in (a), and the depth is noted by the dashed red line in (c). Reprinted with permission from de la Zerda A, et al. Photoacoustic ocular imaging. Opt Lett. 2010;35(3):270-2. Copyright 2010 Optical Society.
