What is VS and HPPD?

Visual Snow and Hallucinogen Persisting Perception Disorder are characterized by the continual presence of sensory disturbances, most commonly visual.

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Register With NNRF

Join a worldwide database of those who suffer from VS/HPPD. You'll provide important statistical information to our researchers and you'll be able to see the doctors treating VS/HPPD in your area.

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Put Your Pin On Our Maps

Our VS & HPPD Disease Maps allow researchers, doctors and patients to connect all over the world in order to provide support and catalyze vital research.

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You're Not Alone. Together, We Will Educate The Public While Searching For A Treatment And Cure

The Neurosensory & Neuroregenerative Research Foundation (NNRF) is comprised of individuals dedicated to unraveling the neurobiological underpinnings behind two relatively unknown, under-recognized yet prevalent neurological conditions -- Visual Snow (VS) and Hallucinogen Persistent Perception Disorder (HPPD). The two neurological diseases share similarities in symptom complex, and with the proper resources in research, funding and advocacy, the NNRF hopes to aid this desperately deserving patient pool. Education is key. A lack of proper physician training leads to a dearth of quantified VS and HPPD cases. In the end -- many Physicians cannot identify VS or HPPD because they haven't learned about the maladies. This leads to misdiagnosis, the prescription of ineffective and potentially harmful medicines, and the worsening of symptoms. A few of these cases lead to tragic outcomes. The NNRF is here to shift the paradigm for those who suffer from VS or HPPD.