Grain counts per unit area in different regions of the normal optic nerve head. Grain counts have been corrected for glia and myelin correction factor. Grain counts for each curve taken from autoradiograph preparation of optic nerve head from eyes enucleated six hours and 1, 4, and 12 days after injection of tritiated leucine into vitreous cavity.
Abbreviations: ALR = anterior part of nerve fiber layer; LC = lamina cribrosa; ML = anterior line of retrolaminar myelinated optic nerve; NFL = Nerve fiber layer; ON = optic nerve; PL = prelaminar region; PLR = posterior part of nerve fiber layer
Figs. 46–68: Fundus photographs show three grades of severity of optic disc edema and other fundus changes due to raised intracranial pressure.