• Part a courtesy of Lisa Rosenberg, MD, part b courtesy of Steven Vold, MD.
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    Primary angle-closure glaucoma (PACG). a. Small pupil is not uncommonly encountered in patient with PACG. Iris hooks can be used to enlarge the pupil intraoperatively. b. A Malyugin ring is sometimes used for lens extraction in PACG patients with a small pupil. It can be positioned at the pupillary margin circumferentially for pupil enlargement.