PMC5651109_01
(a) Predilation and (b) postdilation anterior segment photos of left eye showing large inferotemporal iris cyst at presentation, causing ectropion uveae and anterior displacement of the iris surface. Four months after stopping topical Latanoprost, the cyst is only evident after dilation. Note patent peripheral iridotomies (arrow).
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fig1
At a routine appointment in November 2014, forty-one months after commencing Latanoprost, he was noted to have uveal tissue protruding through the undilated left pupil, causing anterior displacement of the inferotemporal iris surface (Figure 1(a)). The smooth dark brown mass of uveal tissue was more pronounced after pupil dilation (Figure 1(b)). During subsequent monitoring, the left iris cyst was noted to gradually decrease in size and, four months later, was only evident on dilated slit-lamp examination (Figure 1(b)).
Ultrasound biomicroscopy (UBM) images of (a) right and (b) left eyes showing multiple iris pigment epithelial and ciliary body cysts in both eyes prior to stopping topical Latanoprost.
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Similar IPE and CB cysts were detected in the contralateral eye, despite not being evident on the slit lamp (Figure 2).