I tried looking at TV static videos on YouTube, and a TV static animated gif like the one I posted below. This TV static did not help with my ME/CFS cognitive symptoms. However, spending just 30 seconds starring at such TV static seemed to noticeably improve my ME/CFS blurred vision for some reason. So this TV static may be stimulating the neurons in the retina in a way that sharpens the eyesight.
TV Static
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