Maura Bailie MCOptom, A Jonathan Jackson MCOptom, Joanne Logan MCOptom, Angela Knox FRCOphth and Augusto Azuara-Blanco FRCOphth

Introduction
Glaucoma is a chronic progressive optic neuropathy resulting in characteristic optic nerve head and visual field changes. Open-angle glaucoma is more prevalent among those with a positive family history, those with raised intraocular pressure (IOP), myopia, reduced central corneal thickness and in the Afro-Caribbean population (European Glaucoma Society, 2014).