title: Optic disc topography in glaucoma.
abstract: An optic disc with glaucomatous cupping is said to be characterized by its extensive excavation, pallor and displacement of disc vessels. All of these features, however, can occur in normal discs. The factors which influence these features in normal eyes are reviewed and an attempt is made to define the differential diagnostic features of the disc in glaucoma.
mesh_terms: D000328:Adult; D005260:Female; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009898:Optic Disk / Q000033:anatomy & histology; D010167:Pallor; D012171:Retinal Vessels; D013997:Time Factors