Goodnotes 3.pdf

OPTIC NERVE ABNORMALITIES 86  Swelling of the ON head due to increase intracranial pressure PAPILLEDEMA Causes of pseudopapilledema Hyperopia Optic nerve drusen - Hyperplastic glial tissue...

OPTIC NERVE ABNORMALITIES 86  Swelling of the ON head due to increase intracranial pressure PAPILLEDEMA Causes of pseudopapilledema Hyperopia Optic nerve drusen - Hyperplastic glial tissue 87 PSEUDOPAPILLEDEMA: LIKELY ONH DRUSEN 88 OPTIC ATROPHY Pallor of optic nerve head Attenuation of retinal vasculature Loss of cupping and flat appearance Requires complete neurologic evaluation 89  Underdeveloped optic nerve(s) May vary in severity in extent of vision loss May be associated with endocrine disorders Appearance: small optic nerve head with “double ring sign” Nystagmus common OPTIC NERVE Septo-optic dysplasia: ONH, absent septum HYPOPLASIA pellucidum, pituitary gland dysfunction 90 ON HYPOPLASIA 91 ONH CAUSES Young maternal age (