WAGR is a condition that affects multiple body systems. Its main features are Wilms tumour, aniridia, genitourinary abnormalities and range of developmental delays.

WAGR syndrome describes its four main features: Wilms tumour, aniridia, genitourinary anomalies and range of developmental delays. It is due to deletion of chromosome 11p13.

Infantile nystagmus syndrome (INS) is an umbrella term used to describe different forms of infantile nystagmus (with or without sensory defects) characterised by an increasing slow phase velocity.