Your Brain Doesn't See Color the Way You Think It Does
If you've ever put on a pair of tinted glasses and thought, "Wow... my body feels different."
You're not imagining it.
While colored lenses aren't a cure for pain, anxiety, or nervous system dysregulation, growing research suggests they can meaningfully change how much work your brain has to do to process visual information.
And for someone living with chronic pain, migraine, concussion, PTSD, sensory sensitivity, or persistent stress, that matters.
Your Brain Doesn't Just See…
It Processes.
Every second, your brain is making sense of an incredible amount of visual information.
Light enters your eyes...
↓
Your retina processes it.
↓
Information travels to the thalamus (your brain's sensory relay center).
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Then to your visual cortex.
Only after all of that do you consciously experience what you're looking at.
Most of us assume vision is passive.
It's not.
Vision is one of the brain's highest priorities because it's constantly answering questions like:
- Am I safe?
- Where am I?
- Do I need to react?
- Is there something I should pay attention to?
Your visual system is working all day long.
Different Colors Create Different Amounts of Work
One of the biggest misconceptions is that certain colors are simply "calming."
The research suggests something more interesting.
Different wavelengths of light create different amounts of neural activity throughout the visual system.
Some colors require more processing.
Others require less.
That difference can influence how demanding the visual environment feels.
Think of it like adjusting the volume on a speaker.
Some colors turn the volume up.
Others turn it down.
Green Light: The Quietest Signal
One of the most fascinating studies looked at people living with migraine.
Researchers wanted to know: Why does nearly every color of light make migraine worse... except green?
They discovered something remarkable.
Compared with white, blue, amber, and red light...
Green produced:
- smaller retinal responses
- smaller thalamic responses
- smaller cortical responses
In other words...
The brain literally had less work to do when processing green wavelengths.
This may help explain why many people report that green feels soothing during migraine, chronic pain, or periods of sensory overload.
It isn't necessarily because green is "relaxing."
It's because green may require less neural effort to process.
The Nervous System Perspective
One of the ways I teach regulation is by thinking about capacity.
Your nervous system only has so many resources available at any given moment.
Every demand asks something of it.
Movement.
Noise.
Stress.
Conversations.
Decision-making.
Visual input.
When your brain has to work harder to process information, that's another demand on your available capacity.
If we can reduce unnecessary sensory work, even slightly, we may create more room for everything else.
Different Lens Colors and Their Potential Effects
π΄ Red
What happens?
Red tends to increase visual salience and alertness.
Many people experience it as energizing.
For some sensitive nervous systems, however, it may simply increase sensory load.
Think of it like: Turning the volume up.
π΅ Blue
Blue wavelengths increase alertness and suppress melatonin production.
This makes blue light incredibly helpful during the daytime.
But excessive blue light at night may interfere with sleep and can feel overstimulating for people with migraine or sensory sensitivity.
Think of it like: Strong coffee for the brain.
π Orange / Amber
Orange and amber lenses reduce blue light entering the visual system.
They're commonly used in the evening because they reduce stimulation to circadian pathways and can help support sleep.
Think of it like: Dimming the lights before bed.
π‘ Yellow
Yellow lenses increase contrast and make details appear sharper.
This can improve visual performance in some environments.
However, for highly sensitive nervous systems, that increased contrast can sometimes feel like "too much."
Think of it like: Turning up the brightness and contrast on your television. Everything becomes clearer... but sometimes also more intense.
π£ Purple
Purple lenses have considerably less research behind them.
They're often used to reduce glare and improve visual comfort.
Responses tend to be highly individual.
π Pink (FL-41)
FL-41 lenses have some of the strongest clinical evidence.
Research has shown they can reduce:
- migraine symptoms
- photophobia
- eye strain
- chronic ocular pain
- visual discomfort after concussion
Brain imaging studies suggest FL-41 reduces activation within pain-processing pathways.
Think of it like: Putting sunglasses on an overly bright day. The environment hasn't changed.
Your brain simply has less to process.
π Green
Green is currently one of the most exciting areas of research.
Rather than simply blocking light...
Green appears to produce:
- less retinal activation
- less thalamic activation
- less cortical activation
Researchers are also finding promising evidence for:
- migraine
- chronic pain
- PTSD
- anxiety
- sensory sensitivity
Think of it like: Walking into a quiet forest. Nothing magical happened. Your brain just isn't working quite as hard.
One Important Reminder
Colored lenses are not treatment by themselves.
They're another form of sensory input.
Different brains process different visual environments differently.
What feels calming for one person may feel activating for another.
That's why I don't believe there's one "best" color.
Instead, I ask: Which visual environment allows your brain to do the least amount of unnecessary work?
Sometimes that means green.
Sometimes it's FL-41.
Sometimes it's simply reducing brightness.
Sometimes it's realizing that one small change creates a surprisingly large shift in how your body feels.
The Bigger Takeaway
Your nervous system isn't only responding to your thoughts.
It's responding to the world around you.
The light entering your eyes.
The sounds you're hearing.
The movement you're doing.
The environment you're in.
All of those become information your brain has to process.
The goal isn't to eliminate stimulation.
The goal is to understand which environments help your brain work more efficiently so you have more capacity for the things that matter most.
That's the heart of nervous system regulation.
Not forcing your body to calm down...
…but reducing the amount of work it has to do.
References
Noseda R, et al. (2016). Migraine photophobia originating in cone-driven retinal pathways. Brain, 139(7), 1971–1986.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4939697/
Martin S, et al. (2023). FL-41 Tint Reduces Activation of Neural Pathways of Photophobia in Patients with Chronic Ocular Pain. Ophthalmology Science, 4(2).
https://pubmed.ncbi.nlm.nih.gov/38101593/
An Overview of the Therapeutic Applications of Tinted Lenses Spectacles. (2025).
A comprehensive review covering therapeutic tinted lenses for migraine, traumatic brain injury, visual stress, concussion, and related neurological conditions.
https://pmc.ncbi.nlm.nih.gov/articles/PMC12718731/
Chang A-M, et al. (2015). Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness. Proceedings of the National Academy of Sciences, 112(4), 1232–1237.
https://www.pnas.org/doi/10.1073/pnas.1418490112
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