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acrylic prints iris acrylic prints eye acrylic prints human body acrylic prints anatomy acrylic prints vision acrylic prints sight acrylic prints scanning electron micrograph acrylic prints sem acrylic prints

photographs iris photos eye photos human body photos anatomy photos vision photos sight photos scanning electron micrograph photos sem photos

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False-colour, low-power scanning electron micrograph (SEM) of the human eye, showing the ciliary body & iris. The deeply folded tissue at left & top is the ciliary body, which normally encircles & controls the lens of the eye, flattening it to focus distant objects onto the retina & making it more spherical to focus closer ones. In this view, seen from the back of the eye, the lens has been removed. As a result, one can see through to the less folded muscles of the iris, which control the aperture of the pupil (the black area at bottom right) & so the amount of light that reaches the retina. Magnification: x2.5 at 35mm size. Yellow tint. Reference: MICROCOSMOS, figure 2.9, page 19.

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