Effectiveness of Multimodal imaging for the Evaluation of Retinal oedema And new vesseLs in Diabetic retinopathy (EMERALD) nork Lois, N, Cook, J, Aldington, S, Waugh, N, Mistry, H, Sones, W, McAuley, D, Aslam, T, Bailey, C, Chong, V, Ghanchi, F, Scanlon, P, Sivaprasad, S, Steel, D, Styles, C, McNally, C, Rice, R, Prior, L, Azuara-Blanco, A, Emerald Study Group