The clinical presentation of bradyopsia in children

Diagnosing bradyopsia can be challenging in young children because structural ophthalmic examination is typically normal and visual acuity can improve with pinhole despite no significant refractive error. This case series highlights the clinical presentations and features of 5 affected children (3 Arab families) who harbored the same homozygous RGS9 frameshift mutation, which seems to represent a founder effect for the Arabian Peninsula.