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Visual Snow Syndrome Glasses
What is NeuroTint™?
NeuroTint is precision-tinted eyewear designed by optometrists to help people who live with light sensitivity. Our lenses are engineered to filter bands of light that commonly trigger discomfort in migraine, concussion recovery, visual snow, ocular surface pain and related conditions. The goal is simple. Less light-triggered pain. More comfortable days!
How FL-41 Lenses Help for Photosensitive Epilepsy
Visual Snow Syndrome (VSS) is a neurological condition that causes people to see what appears like static or "visual noise" across their entire visual field—similar to the grainy fuzz of an untuned TV. This static is present even with closed eyes and is often accompanied by other visual disturbances, including afterimages, light sensitivity (photophobia), trailing images (palinopsia), and difficulties in low-light conditions.
One of the most promising symptom-management tools for VSS is precision-tinted lenses, often referred to as therapeutic or specialty tints. These lenses are designed to filter out certain wavelengths of light that may trigger or worsen visual disturbances.
Benefits of Tinted Lenses for Visual Snow:
- Reduces visual noise: By selectively filtering specific light frequencies, tinted lenses can reduce the intensity and visibility of static.
- Minimises light sensitivity: Tints help reduce photophobia, especially in environments with harsh or flickering lighting.
- Improves visual comfort: Many patients report a calmer, less “chaotic” visual experience when wearing their prescribed tints.
- Supports visual processing: Some tints may help normalise visual signal processing in the brain.
The most commonly used tint for visual snow is the FL-41 tint, a rose-coloured lens initially developed to help with migraine light sensitivity.
Clinical Evidence Supporting FL-41 Lenses
While research is still emerging, several studies and anecdotal reports support the use of tinted lenses:
- Puledda et al. (2020) conducted a study that demonstrated how Visual Snow is associated with hyperactivity in the lingual gyrus, part of the brain’s visual processing area. Treatments that reduce visual stimuli, such as tinted lenses, may help modulate this response.
Puledda, F., et al. "Visual snow syndrome: A clinical and phenotypical description of 1100 cases." Neurology 94.6 (2020): e564-e574. - Wilkins et al. (2002) found that precision-tinted lenses can reduce cortical hyperexcitability and visual discomfort in people with migraine and perceptual distortions. These findings have implications for VSS, which shares overlapping symptoms. Wilkins, A.J., et al. "Double-masked placebo-controlled trial of precision spectral filters in children who use coloured overlays." Ophthalmic and Physiological Optics 22.6 (2002): 481–489.
- The Visual Snow Initiative and other advocacy groups also report patient improvements in symptoms with custom tinted lenses, although more controlled trials are needed.
See the effect of our tints
