Isolated Congenital Optic Disc Anomalies

This patient has optic disc drusen and evidence of a superimposed optic neuropathy, including loss of visual field, an ipsilateral afferent pupillary defect, and optic atrophy. Although optic disc drusen typically causes visual field loss without visual acuity loss superimposed, ischemic optic neuropathy may occur in patients with optic disc drusen. However, evaluation for alternative causes of an optic neuropathy should be considered in patients with optic disc drusen and visual acuity loss.