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Optic Nerve And Optic Chiasm Disorders
Optic Pit Neuropathy
What is it?
Congenital hole in the optic disc attributed to faulty embryogenesis
Non-progressive visual field defect caused by absent optic nerve axons
What does it look like?
Focal excavation in the optic disc infero-temporally
Corresponding steep-margined visual field defect
Serous detachment of the macula sometimes
What else looks like it?
Early glaucoma
Optic disc coloboma
What should you do?
Look for an optic pit as the explanation for macular fluid or an unexplained visual field defect
What will happen?
Optic pit and visual field defect remain stable
Macular serous detachment may require photocoagulation or vitrectomy
Trap:
optic pit is often misdiagnosed as glaucoma and unnecessarily treated
Optic Nerve And Chiasm Disorders
Drusen Optic Neuropathy
Colobomatous Optic Neuropathy
Optic Pit Neuropathy
Morning Glory Optic Neuropathy
Hypoplastic Optic Neuropathy
Typical Optic Neuritis
Atypical Optic Neuritis
Papillitis (Neuroretinitis)
Non-arteritic Ischemic Optic Neuropathy
Arteritic Ischemic Optic Neuropathy
Posterior Ischemic Optic Neuropathy
Hypotensive Ischemic Optic Neuropathy
Radiation-induced Optic Neuropathy
Diabetic Papillopathy
Hypertensive Optic Disc Edema
Papilledema
Idiopathic Intracranial Hypertension (Pseudotumor Cerebri)
Compressive Optic Neuropathy: Overview
Optic Neuropathy of Graves Disease
Optic Nerve Sheath Meningioma
Sphenoid Meningioma
Craniopharyngioma
Pituitary Adenoma
Pilocytic Astrocytoma (Optic Glioma)
Carotid Aneurysm
Suprasellar Germinoma
Infiltrative (Neoplastic) Optic Neuropathy
Paraneoplastic Optic Neuropathy
Traumatic Optic Neuropathy
Toxic Optic Neuropathy
Nutritional Deficiency Optic Neuropathy
Dominantly-Inherited Optic Neuropathy
Leber Hereditary Optic Neuropathy
Primary Open Angle Glaucoma