Two siblings presenting with dysmorphism, developmental delay and intellectual disability due to partial trisomy 8p and partial monosomy 18p resulting from a maternal balanced translocation t(8;18)(p21.3;p11.23). International Conference on Birth Defects, Genes, Genome and Human Malformations and Symposium on Genetic Eye Diseases in Clinical Ophthalmology, 9 – 11 February 2014, Waters Edge, Colombo, Sri Lanka. (Abstracted in the proceedings of the conference)