External dacryocystorhinostomy in consultants and fellows – a comparison of the causes of failure Posted on February 28, 2019July 26, 2022 by admin ORIGINAL ARTICLE Hippokratia 2015, 19(3):216-218 Sullivan L, Fearnley T, Al-Maskari A, El-Hindy N, Kalantzis G, Chang BY Ophthalmology Department, St James University Hospital, Beckett Street, Leeds, United Kingdom