Intersibling variability of retinopathy of prematurity in twins and its risk factors

To study intersibling variability of retinopathy of prematurity (ROP) in twins and determine its risk factors. A retrospective chart review of twin neonates developing ROP at a tertiary center over a 5 year period (January 2004 to December 2008). Twin pairs with intersibling variability of ROP were retrieved based on one of the following criterion: (1) two-stage difference in ROP between siblings, (2) one sibling with treatable ROP and the other...