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  2. Spaceflight associated neuro-ocular syndrome - Wikipedia

    en.wikipedia.org/wiki/Spaceflight_Associated...

    Optic-disc edema of Grade 0-2; CSF opening pressure ≤ 25 cm H 2 O; Class 4 Institute treatment protocol as per Clinical Practice Guideline ≥ 0.50 diopter cycloplegic refractive changes and/or cotton-wool spot; Optic nerve sheath distention, and/or globe flattening and/or choroidal folds and/or scotoma; Optic-disc edema Grade 2 or above

  3. Papilledema - Wikipedia

    en.wikipedia.org/wiki/Papilledema

    Papilledema or papilloedema is optic disc swelling that is caused by increased intracranial pressure due to any cause. [1] The swelling is usually bilateral and can occur over a period of hours to weeks. [2] Unilateral presentation is extremely rare. In intracranial hypertension, the optic disc swelling most commonly occurs bilaterally.

  4. Optic neuropathy - Wikipedia

    en.wikipedia.org/wiki/Optic_neuropathy

    Posterior ischemic optic neuropathy is a syndrome of sudden visual loss with optic neuropathy without initial disc swelling with subsequent development of optic atrophy. This can occur in patients who are predisposed to AAION and NAION as described above as well as those who had cardiac and spine surgery or serious episodes of hypotension.

  5. Optic disc drusen - Wikipedia

    en.wikipedia.org/wiki/Optic_disc_drusen

    Optic disc drusen (ODD) are globules of mucoproteins and mucopolysaccharides that progressively calcify in the optic disc. [ 1 ] [ 2 ] They are thought to be the remnants of the axonal transport system of degenerated retinal ganglion cells .

  6. Hypertensive retinopathy - Wikipedia

    en.wikipedia.org/wiki/Hypertensive_retinopathy

    Advanced retinopathy lesions, such as microaneurysms, blot hemorrhages and/or flame hemorrhages, ischemic changes (e.g. "cotton wool spots"), hard exudates and in severe cases swelling of the optic disc (optic disc edema), a ring of exudates around the retina called a "macular star" and visual acuity loss, typically due to macular involvement.

  7. Idiopathic orbital inflammatory disease - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_orbital...

    Idiopathic orbital inflammatory (IOI) disease refers to a marginated mass-like enhancing soft tissue involving any area of the orbit.It is the most common painful orbital mass in the adult population, and is associated with proptosis, cranial nerve palsy (Tolosa–Hunt syndrome), uveitis, and retinal detachment.

  8. Spinal cord compression - Wikipedia

    en.wikipedia.org/wiki/Spinal_cord_compression

    Symptoms suggestive of cord compression are back pain, a dermatome of increased sensation, paralysis of limbs below the level of compression, decreased sensation below the level of compression, urinary and fecal incontinence and/or urinary retention. Lhermitte's sign (intermittent shooting electrical sensation) and hyperreflexia may be present.

  9. Neurogenic claudication - Wikipedia

    en.wikipedia.org/wiki/Neurogenic_claudication

    The predominant symptoms of NC involve one or both legs and usually presents as some combination of tingling, cramping discomfort, pain, numbness, or weakness in the lower back, calves, glutes, and thighs and is precipitated by walking and prolonged standing. However, the symptoms vary depending on the severity and cause of the condition.