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  Channels: Cataract Surgery | Posted 11/8/2016

Sergio Canabrava, MD, shows the Canabrava's Ring in a colomoba case. The PMMA iris expansion ring is thinner than previous PMMA rings and has alternating projections that engage the iris above and below the pupillary edge.

Canabrava's Ring • Iris coloboma • Iris Expander • Pupil Expansion • Small pupil • VJCRS

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