Optic neuritis: Difference between revisions

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##Test the other eye to see if the object looks the same color
##Test the other eye to see if the object looks the same color
###Affected eye often will see the red object as pink or lighter red  
###Affected eye often will see the red object as pink or lighter red  
#Tonopen
#Ocular pressures
#Afferent Pupilary Defect (APD)
#Afferent Pupilary Defect (APD)
#Optic disc swelling and edema (papillitis)
#Optic disc swelling and edema (papillitis)

Revision as of 13:51, 1 September 2015

Background

  1. Inflammatory, demyelinating condition of the optic nerve highly associated with MS
    1. 50% will go on to develop MS
  2. Presenting feature of MS in 15-20% of pts

Causes

  1. Idiopathic
  2. Multiple sclerosis
  3. Postchildhood vaccination
  4. Viral infection
    1. Measles, mumps, varicella, zoster, EBV
  5. Inflammation of structures contiguous with the optic nerve
    1. Meninges, orbit, sinuses
  6. Other infections
    1. Syphilis, Tuberculosis, Crypto
  7. Sarcoidosis, uveitis
  8. Temporal arteritis
  9. Vasculitides
  10. Ischemic optic neuropathy
  11. Hypertensive retinopathy, papilledema
  12. DM retinopathy
  13. Intracranial tumor, orbital tumor
  14. Glaucoma

Clinical Features

  1. Acute, usually monocular, vision loss occurring over days (occasionally over hours)
    1. May range from mildly reduced to no light perception whatsoever
  2. Retro-orbital headache
  3. Pain (esp w/ eye movement)
  4. Loss of color vision out of proportion to loss of visual acuity

Diagnosis

  1. Red desaturation test
    1. Have pt look with one eye at a dark red object
    2. Test the other eye to see if the object looks the same color
      1. Affected eye often will see the red object as pink or lighter red
  2. Ocular pressures
  3. Afferent Pupilary Defect (APD)
  4. Optic disc swelling and edema (papillitis)
    1. Elevated optic nerve disk on US = papilledema
  5. MRI of brain and orbits with gadolinium, plus fat suppression
  6. CBC
  7. CMP
  8. ESR, CRP
  9. RPR, FTABS
  10. CXR

DDx

  1. Ischemic optic neuropathy
  2. Papilledema
  3. Hypertensive retinopathy
  4. Orbital tumor compressing optic nerve
  5. Intracranial tumor compressing visual pathway

Treatment

  1. Consult neuro and ophthalmology
  2. MRI to r/o or in MS
  3. Inpatient admission for IV methylprednisolone, 1 g qd x3 days

See Also

Multiple Sclerosis (MS)

Source

Tintinalli

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