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Accelerating Research to Cure Visual Snow Syndrome and give patients their lives back

Visual snow syndrome - A clinical and phenotypical description of 1,100 cases

1/4/2022

 
Francesca Puledda,  Christoph Schankin, Peter J. Goadsby
First published January 15, 2020, DOI: https://doi.org/10.1212/WNL.000000000000890

Results The visual snow population had an average age of 29 years and had no sex prevalence. The disorder usually started in early life, and ≈40% of patients had symptoms for as long as they could remember. The most commonly experienced static was black and white. Floaters, afterimages, and photophobia were the most reported additional visual symptoms. A latent class analysis showed that visual snow does not present with specific clinical endophenotypes. Severity can be classified by the amount of visual symptoms experienced. Migraine and tinnitus had a very high prevalence and were independently associated with a more severe presentation of the syndrome.

​Conclusions Clinical characteristics of visual snow did not differ from the previous cohort in the literature, supporting validity of the current criteria. Visual snow likely represents a clinical continuum, with different degrees of severity. On the severe end of the spectrum, it is more likely to present with its common comorbid conditions, migraine and tinnitus. Visual snow does not depend on the effect of psychotropic substances on the brain.
​
Full article can be viewed here or PDF downloaded below
vsspuledda.pdf
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  • Home
  • WHAT IS VISUAL SNOW SYNDROME
    • What is Visual Snow Syndrome >
      • Visual Snow Syndrome Overview
    • Visual Snow Resources
    • Symptoms >
      • Blue Field Entoptic Phenomenon
      • Brain Fog
      • Eye Floaters
      • Glare
      • Nyctalopia
      • Oscillopsia
      • Palinopsia
      • Paresthesia
      • Phosphenes
      • Photophobia
      • Silent Migraine
      • Tinnitus
      • Vertigo
  • HOW TO HELP
    • Donate Once
    • Make a Recurring Donation
    • Corporate Giving & Partners
    • Subscribe
    • Connect with us on Social Media
    • Share your VSS story
    • You Can Fundraise >
      • Volunteer Agreement
    • Events
  • WHAT WE DO
    • About
    • Research & News
    • Research Collaborations
    • Meet our VSS Community
  • Donate