Chemically-induced retinal folds. A) Photomicrograph at 200× magnification of healthy chicken retina and (B) NMDA6 treated retina stained with toludine blue. C) NMDA6 treated eye, En-face and (D, E) cross-sectional SD-OCT images of retinal folds. The B-scans (D, E) correspond to the green line and below in (C). Images were obtained with the Envisu system with the General Retina bore. Scale bar 50 µm for (A), (B), and (C). Scale bar 100 µm for (D) and (E).