PMC6324153_01
(a) Clinical photograph showing accessory iris membrane, connected to the collarette with thick strands and obscuring the pupil. There is a small "pseudopupil" in the center. (b) The pupil and the anterior lens surface, as seen through gaps in the accessory membrane after dilatation of the pupil. The ultrasound biomicroscopy, before (c) and after (d) dilatation of the pupil, showing the origin of the membrane from the superficial layers of iris and obscuring the pupil
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F1
Fig. 1a shows accessory iris tissue of the same texture, connected to the collarette with a small pseudopupil. Fig. 1b shows the pupil through gaps in the accessory membrane after dilatation of the pupil. The ultrasound biomicroscopy appearance (UBM) shows continuation of this membrane with anterior stromal layers of iris [Fig. 1c and d].