Figure 7: OCT. A. Cirrus OCT corresponding of the patients of Figure. 6. There is a significant thickening of RNFL (superior) in the acute phase (optic nerve head edema) with normal RNFL thickness within one year (inferior). B. Anterior ON in a young female patient with RNFL thickening in three of four quadrants. C. Within three months there is a diffuse pallor of the optic nerve head with severe thinning of the four quadrants. Courtesy of Spanish Society of Ophthalmology.