The Canabrava Ring, an open ring-shaped pupil expander for cataract surgery associated with iris colobomata: a case report
Arq. bras. oftalmol; 83 (5), 2020
ABSTRACT In this report, we describe a new pupil expander device that was used to obtain adequate pupil dilation and centering in a patient with an iris coloboma. Specifically, we describe the case of a patient with an iris coloboma; a Malyugin ring was inserted to facilitate dilation during phacoemulsif...