Lew Lim

Founder & CEO of Vielight Inc.

[Lew Lim @lewlim1]

New peer-reviewed pilot study in the Journal of Alzheimer’s Disease: home-based tPBM in mild cognitive impairment using the Vielight Neuro device.
Led by Neda Rashidi-Ranjbar & Corinne E. Fischer. I was pleased to contribute as a co-author from Vielight.
Read: https://t.co/P9hs0TcJeZ

[Lew Lim @lewlim1]

Full symposium:
https://t.co/DC0UeJ1hkq

[Lew Lim @lewlim1]

https://t.co/vRHi7Fjrdg
This may be one of the first viable paths forward.

[Lew Lim @lewlim1]

Showing real promise in addressing the underlying biology of brain injury

[Lew Lim @lewlim1]

Highlighting photobiomodulation (PBM) — a non-invasive approach

[Lew Lim @lewlim1]

Clinical evidence (University of Utah) + a powerful patient story

[Lew Lim @lewlim1]

At a recent symposium, something important emerged:

[Lew Lim @lewlim1]

Despite its scale, there is no standard of care.

[Lew Lim @lewlim1]

There is still no widely accepted treatment for traumatic brain injury.
Millions are affected — often with lasting consequences.

[Lew Lim @lewlim1]

Study summary, key findings, and quotes are available in the Vielight press release:
🔗 https://t.co/th0OenW7sN

[Lew Lim @lewlim1]

Long‑COVID cognitive dysfunction has no established, approved treatments. This is a pilot study but it shows that a safe, non‑invasive, home‑use neuromodulation device can produce measurable changes on a validated cognitive battery. We continue our research...

[Lew Lim @lewlim1]

New paper in Lancet’s eClinicalMedicine: randomized, double‑blind, sham‑controlled home‑based light‑therapy trial for long‑COVID “brain fog.”​​
In adults <45, active intranasal + transcranial photobiomodulation improved objective composite cognitive performance vs sham, with consistent attention gains and no serious AEs.​​
🔗 https://t.co/PhOYLVc8yM

[Lew Lim @lewlim1]

Mechanism? likely PBM-induced vasodilation driving CSF movement. This proof-of-concept brings us closer to non-pharmacological tools for neurodegenerative prevention. Huge thanks to the team at University of Toronto! #Neuroscience #Alzheimers #MedTech

[Lew Lim @lewlim1]

3️⃣ Skin Tone &amp; Dosimetry For forehead stimulation, melanin mattered—lighter skin showed higher response. Crucially, Intranasal PBM bypassed this, showing efficacy regardless of skin tone. This is huge for developing consistent, inclusive therapeutic protocols.

[Lew Lim @lewlim1]

2️⃣ The Nose Knows 👃 The team compared Forehead (tPBM) vs. Intranasal (iPBM). Result: Intranasal was surprisingly efficient. It achieved similar CSF modulation using only ~1/20th of the irradiance needed for the forehead. The cribriform plate is a direct highway for light!

[Lew Lim @lewlim1]

1️⃣ Real-Time Modulation The team used fMRI to track CSF flow. Just 4 minutes of PBM stimulation triggered an immediate increase in intracranial CSF volume and altered inflow. This suggests we can non-invasively influence the brain’s "glymphatic" cleaning system. 🧠🌊

[Lew Lim @lewlim1]

🚨 New Pub! Can we use light to boost brain waste clearance? A new fMRI study shows that pulsed Photobiomodulation (PBM) modulates Cerebrospinal Fluid (CSF) dynamics in the healthy human brain. Here are 3 major takeaways 🧵👇 https://t.co/QMbgHNNXeV

[Lew Lim @lewlim1]

Just published: new paper on #Photobiomodulation (PBM) — we show that red/near-IR light can boost healthy cell viability and under specific conditions reduce cancer cell viability. https://t.co/G10rLYrDdO
Our broader goal: map how physical stimuli (light, EMF) shape cell fate in health & disease.
#CellBiology #LightTherapy #CancerResearch

[Lew Lim @lewlim1]

TBI and CTE remain daunting challenges — but recovery stories like Rico Petrini’s remind us that new, non-invasive technologies like photobiomodulation (PBM) can change lives.

Watch CBS News Sacramento’s feature: https://t.co/1Ly6G0fQZ8

[Lew Lim @lewlim1]

Sharing a powerful CBS News story on recovery from TBI and suspected CTE using Vielight's red light therapy.
I was invited to share insights on how PBM may produce these outcomes.
📺 https://t.co/1Ly6G0fQZ8