Short answer: no. Color blindness comes from differences in the color-sensing cone cells in the eye, and a blue light filter can't change how those cells work. Tinted blue light glasses actually shift colors, so a strong tint can make some colors harder to tell apart if you're color blind. A clear lens is the safer choice if you want a filter at the screen, and a tinted lens should come off for any task where color matters.
Why People Ask This
Some glasses are marketed as helping people with color blindness, and blue light glasses also change how light reaches your eyes, so it's natural to wonder whether they could do the same. They can't, and it helps to know why.
What Is Color Blindness?
Color blindness, or color vision deficiency, means having trouble telling certain colors apart. It's usually inherited and present from birth, and it's far more common in men: about 1 in 12 men and 1 in 200 women have some form of it.
How Normal Color Vision Works
The retina has three types of cone cells, most sensitive to long (red), medium (green) and short (blue) wavelengths of light. The brain compares the signals from all three to work out color. If one type of cone is missing or responds differently, some colors look alike.
Common Types
- Red–green color blindness: by far the most common
- Blue–yellow color blindness: rare
- Complete color blindness (achromatopsia): very rare
What Color Blindness Is Not
Inherited color blindness isn't caused by screens, eye strain or lifestyle, and it doesn't change from day to day. Color vision can change later in life because of eye disease, some medications or other health problems, though, so if your color vision changes, see an eye doctor.
What Blue Light Glasses Are Designed to Do
Blue light glasses filter part of the blue light from screens, lighting and daylight. Their main real use is in the evening: an orange or red lens cuts most of the blue light that can delay sleep. For daytime eye strain, the evidence is weak. A 2023 Cochrane review found they probably make little or no difference to eye strain in the short term.
They don't change your cone cells, improve how you tell colors apart, or treat any vision condition.
Can Blue Light Glasses Help With Color Blindness?
No. Color blindness is about how the cones respond to light, not the light itself. Filtering blue light can't repair or replace a cone type.
Tinted Lenses Can Make It Harder
Every tint changes colors. A yellow lens mutes blues and makes whites look warm; an orange or red lens removes most blues and greens. If you already find some colors hard to separate, taking more color information away can make it harder still. That's why:
- A clear lens is the better daytime choice if you want a filter. It changes colors the least.
- Tinted lenses should come off for anything where color matters: color-coded charts, wiring, cooking, choosing clothes.
- Never drive in orange or red lenses. Traffic signals depend on color, and those lenses cut too much light for driving at night. See Blue Light Glasses for Driving.
For more on how each tint changes what you see, read Do Blue Light Glasses Change Color?
Blue Light Glasses vs Color-Enhancing Glasses
Glasses sold for color blindness work differently. They use filters that cut narrow bands of light between the red and green ranges, which can make some reds and greens stand out more against each other for some people, in some situations. Studies have found they don't restore normal color vision or help people pass color vision tests.
| Blue light glasses | Color-enhancing glasses | |
|---|---|---|
| What they filter | Part of the blue light | Narrow bands between red and green |
| Main use | Evening light before sleep | More contrast between some colors |
| Effect on color | Tinted lenses shift colors; clear lenses barely do | Shift colors on purpose; results vary |
| Fix color blindness? | No | No |
Can Blue Light Glasses Still Be Useful If You're Color Blind?
For the same reasons as anyone else, yes: an orange lens in the evening if late screens cut into your sleep, or a clear lens at the screen if you like one. Being color blind doesn't make them more or less useful. Just choose the tint with care.
How to Choose Glasses If You're Color Blind
- Daytime: a clear lens such as InvisiAid (35% at 400–500nm, 86% light let through, Category 0) keeps colors close to normal.
- Evening at home: an orange lens such as SleepAid (99% at 380–550nm, 48% light let through, Category 1). Take it off for anything color-critical, and never drive in it.
- Wear prescription glasses? Ask about a filter in your prescription lenses, or use a clip-on or fit-over pair.
- Be wary of claims that any glasses "cure" or "correct" color blindness.
Figures measured by Micro-Light Optics. See our lab data for every lens, or compare how each tint looks in Through the Lens.
Questions You Might Have
Can Blue Light Glasses Improve Color Vision?
No. They don't change how your eyes detect color. Tinted ones shift colors, which can make telling some apart harder.
Why Do Some Glasses Claim to Help Color Blindness?
Color-enhancing glasses can make some colors stand out more against each other for some people. They don't cure color blindness or restore normal color vision.
Can Screens Cause or Worsen Color Blindness?
No. Inherited color blindness is present from birth and isn't affected by screens. If your color vision changes, see an eye doctor, because it can be a sign of another eye problem.
Is It Safe to Drive in Blue Light Glasses If I'm Color Blind?
Not in orange or red lenses, at any time. They shift the colors of traffic signals and cut too much light for night driving. For which lenses are suitable on the road, see Blue Light Glasses for Driving, and follow your eye doctor's advice.
Are There Any Treatments for Color Blindness?
There's no cure for inherited color blindness. Color-enhancing glasses, phone apps that name colors, and the color-filter settings on phones and computers can help in everyday situations.
Conclusion
Blue light glasses don't help with color blindness, because the condition comes from the cone cells in the eye, not the light. Tinted lenses shift colors, so if you're color blind, a clear lens is the safer daytime choice and tinted lenses are for evenings at home only. For help telling colors apart, color-enhancing glasses, apps and device settings are worth exploring, and an eye doctor can confirm what type of color vision deficiency you have.
