Ophthalmology · MU Sofia

73. Atrophy of the optic disc

Lists the causes of optic disc atrophy, separating primary acquired forms (ischaemic from central arterial occlusion, pressure from tumour, traumatic from canal fracture, and toxic from agents such as methanol, ethambutol and gentamicin) from secondary forms such as glaucoma and inflammatory atrophy. Closes with the clinical picture, contrasting the sharply bordered pale flattened disc of primary atrophy with the washed-out margins of secondary atrophy.

Inside: 1 section · 13 flashcards · 1 min

Topic 73 of 91 in the MU Sofia syllabus for Ophthalmology (Medicine, Year 4). The free AceMed note covers it in 1 section, about 80 words (1 min of reading), with 13 flashcards.

In this note

  1. Atrophy of the optic disc

Atrophy of the optic disc

Etiology

Acquired primary atrophy of the optic disc:

  • Ischemic atrophy: Central arterial occlusion
  • Direct pressure from tumor -> Pressure atrophy
  • Fracture in canalis opticus -> traumatic atrophy
  • Toxic atrophy: Methanol, Ethambutol, Streptomycin, Gentamicin, Arsen

Acquired secondary atrophy of optic disc

  • Glaucoma (und zwar das "primäre chronische Offenwinkelgalukom" auch PCOG genannt)
  • Inflammatory atrophy

Clinic

  • Variable: Loss of visual field up to blindness
  • Primary atrophy: defined bordered, pale, flattened papilla
  • Secondary atrophy: Ingrowth of astrocytes -> pale, washed out borders of papilla

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