1 INTRODUCTION Coats disease is an idiopathic retinal vascular disorder characterized by telangiectatic vessels, lipid exudation and variable exudative retinal detachment (Black et al., 1999; Sen et al., 2019; Shields & Shields, 2002). First described by George Coats (1908), the disease classically presents during childhood and has long been considered a predominantly paediatric condition with aggressive progression and poor visual outcomes (Smithen et al., 2005).
