Efficacy of the Canabrava Ring (pupil expansion device) in cataract surgery for eyes with small pupils: the first 30 cases

by Sérgio Canabrava, Pedro Henriques Rezende, Glauber Coutinho Eliazar, Sophia Barbosa de Figueiredo, Arthur Fernandes Resende, Wagner Duarte Batista, Alberto Diniz-Filho