To cite: Kumar V, Surve A, Chandra P, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2016216729 DESCRIPTION A 3-year-old girl presented with poor vision OD since birth. The best-corrected visual acuity was counting fingers OD and 20/40 OS with +1D in each eye. Esotropia of 45 prism dioptres (PD) was noted in OD. The anterior segment was unremarkable OU. OS...