Color blind glasses use special lens filters to increase the perceived contrast between colors. They don't cure color blindness, they don't give you normal vision, and they don't work for everyone. But for the right person, they can be a meaningful quality-of-life improvement. Here's how to figure out if you're that person.
How Color Blind Glasses Work
The most common type of color blindness is red-green deficiency (deuteranomaly or protanomaly). In these conditions, the red and green cone cells in your retina have too much overlap in the wavelengths they respond to. Your brain receives similar signals for colors that should look different, and everything in the red-to-green range gets muddied together.
Color blind glasses use notch filters — they selectively block the specific wavelengths where your red and green cones overlap the most. By removing those confusing wavelengths, the remaining light hits your cones with less ambiguity. The result: your brain can tell the difference between colors it previously confused.
The key word is enhanced, not corrected. You're not seeing what a person with normal vision sees. You're seeing a version of reality that's been optically filtered to reduce confusion. The effect goes away the moment you take the glasses off. The American Academy of Ophthalmology confirms these glasses do not change the underlying biology of color blindness.
Who They Work For (and Who They Don't)
Most likely to benefit
- • Mild deuteranomaly — the most common type (~75% of color blind people)
- • Mild protanomaly — less common, but still good candidates
- • People who have some cone function (anomalous trichromats)
- • Outdoor use in bright, full-spectrum lighting
Unlikely to benefit
- • Deuteranopia / protanopia — severe forms where an entire cone type is missing
- • Tritanopia — blue-yellow deficiency (different cone, different wavelengths)
- • Achromatopsia — complete color blindness
- • Indoor or low-light conditions (reduced effect)
What They Cost
| Brand | Price Range | Prescription Available | Return Policy |
|---|---|---|---|
| EnChroma | $189 – $500+ | Yes (from ~$440) | 60-day money-back |
| Pilestone | $60 – $150 | Clip-on option | 30-day return |
| VINO Optics | $90 – $250 | Yes | 30-day return |
| ColorMax | $300 – $700+ | Yes (custom) | Varies |
Our recommendation on pricing
Start with a budget option like Pilestone ($60–$80) to see if the filter approach works for your vision at all. If you notice a clear improvement, invest in EnChroma or VINO for better lens quality and frame durability. Don't spend $400+ without knowing if the technology works for your specific type of CVD.
What the Research Says
Let's be direct: the scientific evidence for color blind glasses is mixed. Independent peer-reviewed studies have not consistently shown that these glasses improve performance on clinical color vision tests (like the Ishihara or Farnsworth D-15).
Where They Actually Help (and Where They Don't)
Yes — outdoor bright light is the best-case scenario. Many users describe this as "seeing colors for the first time."
Sometimes — identifying ripe vs unripe fruit, checking meat doneness. Helpful for mild CVD.
No — you need accurate color perception, not filtered perception. Use a color blindness simulator instead to verify your designs.
No — the FAA, military, and most employers prohibit color correction aids during testing. The glasses also don't reliably improve clinical test scores.
Caution — manufacturers advise against wearing them while driving, especially at night. The light filtering can reduce visibility in low light.
Mixed — indoor lenses exist for this, but the effect is less pronounced than outdoors. Some users find it helpful, others notice no difference.
The Bottom Line
Color blind glasses are worth trying if you have mild-to-moderate red-green color blindness and you want to experience colors differently — especially outdoors. They're a tool, not a treatment. Think of them like reading glasses: they help while you wear them, they don't change your eyes, and they're not for everyone.
They're not worth it if you have severe dichromacy (protanopia/deuteranopia), blue-yellow deficiency, or if you need accurate color vision for work. They're also not worth it at full price without testing first — always buy from a brand with a return policy.
Our honest take: start with the Ishihara test to identify your CVD type and severity. If you're a mild anomalous trichromat, try a budget pair first. If those help, upgrade. If they don't, you've spent $60 instead of $400.
Common Questions
How long does it take for color blind glasses to work?
Most manufacturers say to give it 15-30 minutes for your brain to adjust. Some users report the effect strengthening over days of regular use as their visual cortex adapts to the new color signals. If you notice nothing after a week of regular outdoor use, the glasses likely aren't effective for your type of CVD.
Can kids wear color blind glasses?
Yes — both EnChroma and Pilestone offer children's sizes. Some parents report positive results, especially for school-age children struggling with color-coded learning materials. However, children should be professionally tested first to confirm the type and severity of their color blindness.
Do insurance companies cover color blind glasses?
Generally no. Most vision insurance plans do not cover color blind glasses because they're classified as a non-medical enhancement device. Some flexible spending accounts (FSAs) or health savings accounts (HSAs) may reimburse them — check with your plan administrator.
EnChroma vs Pilestone — which is better?
EnChroma has better lens quality and build quality but costs 3-4× more. Pilestone is a reasonable starting point to test whether the filter approach works for you. If Pilestone helps, EnChroma will likely help more with better optical clarity and less color distortion.
Know Your Type Before You Buy
Understanding your specific type and severity of color blindness is the most important step before spending money on glasses.