TheraSpecs® glasses protect you from screens, fluorescent and LED lighting, sunlight, and other irritating light. Look good, feel good, and enjoy more of the things you love.
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Life Without Limits
New memories and brighter days are ahead with TheraSpecs. Try the glasses that people like you have said help reduce the interference of light and light sensitivity in their life:
The [FL-Pro] glasses have been a lifesaver. I can now go into fluorescent lighted stores without fear…It means that I can travel again and not dread airports. The [FL-Sun] pair brings me instant relief when I am in bright sunlight and makes driving a pleasure again.
Debora
I can finally go to concerts again, watch certain shows/videos, drive at night or past forests and live life again without worrying about strobe flashing lights! I haven't been to a concert since I was 15 and turned down many memory making moments or had to leave events because of it.
Jocelyn
Your glasses saved my career. In 2018 I discovered terrible eye trouble [due to] fluorescent lights. It was so debilitating, I thought I’d have to either go on disability or get a non-computer / outside job. I discovered the FL-41 tint, and it has changed my world. This is my second pair of TheraSpecs. Thank you for what you do. You have impacted my life so much. I’m grateful.
Megan
I was suffering tremendously at work from the fluorescent lights [and] computer monitors…My eyes had trouble focusing everyday and on the weekends. I decided to do some research and came across TheraSpecs. These glasses are a miracle. I've had them for a few weeks now and all my previous problems are gone. I can't say enough good things and wish I would have tried them sooner.
Tanya
Your Personal Defense Against Disruptive Light
Light affects people in different ways, especially if they are already light sensitive.1-4 You may find fluorescent lighting to be exceptionally harsh, or screens and blue light to be the most irritating, or maybe most light exposure causes unwanted discomfort.
TheraSpecs are made with you in mind. Each of our specialized lenses filter a specific range of light, so that you can more effectively manage the light you are exposed to—no matter what kind of light sensitivity you have.
Every pair of TheraSpecs has a tint that is:
Designed to target certain wavelengths of light and deliver the right protection for you
Optimized for specific lighting conditions, based on our review of current published, peer-reviewed research
Tested to ensure filtering accuracy as well as optimal lens and frame quality
Enhanced with coatings that block 100% UVA/UVB light and reduce scratching and glare
Your TheraSpecs, Your Way
14
different lens types and strengths
70+
available frame options and colors
Rx
prescription and readers also available
The possibilities—and the protection—with TheraSpecs are endless. Whether you know exactly what you want, or need a little help from us to choose, we’re ready to make your TheraSpecs glasses so that they fit your light management needs and lifestyle.
We've Got You Covered
Protection is a good look on you
Trusted by customers and experts
More Than Just Glasses
Every pair of TheraSpecs is built on a great foundation.
Our frames use high-quality and durable materials to ensure long-lasting wear. They are also designed to be as lightweight as possible while adding the right amount of flexibility to maximize your comfort.
Our lenses start with a base of high-grade, optical-quality nylon and add layers of premium anti-scratch, anti-smudge and anti-reflective coatings to enhance their durability and effectiveness.
FL-Pro™
Your Game Changer for Artificial Lights and Digital Device Screens
The lens that started it all and that customers have loved for more than a decade, FL-Pro levels up your protection for artificial lighting like fluorescent lights, LEDs, and device screens. This rose-colored lens uses FL-41 to filter irritating wavelengths between 480-520nm, making it the perfect defense if your eyes are sensitive to light. If most types of light are hazards that can disrupt your day, try FL-Pro to help you stay in the moments that matter.
By controlling exposure to these wavelengths, FL-Pro may also help people to live well with migraine as part of an overall light management plan.
FL-Blend™
Enjoy Balanced Protection And See The World More Naturally
FL-Blend combines the right amount of critical protection against artificial light sources like fluorescents and digital screens with more natural color perception. A subtle take on the FL-41 lens tint, it targets harsh light between 480-520nm with a softer plum tint to ensure all-day comfort. If you are wanting a truer color experience from your eyewear while still helping to manage your light sensitivity, we recommend FL-Blend for a balanced solution.
Like FL-Pro, FL-Blend reduces exposure to problematic light, which may help people to live well with migraine as part of an overall light management plan.
FL-Sun™
The Best Sunglasses Lens You've Ever Tried
FL-Sun will be your new favorite sunglasses lens and will take extra care of your eyes when you go outside. It uses the power of FL-41, with enhanced filtering from 480-520nm, and wraps it in a dark, polarized lens so you have maximum protection against bright sunlight and outdoor glare. FL-Sun is the perfect option when you’re on the go, whether you are light sensitive or if you just want an awesome pair of everyday sunnies.
FL-Sun also limits exposure to light, which may help people to live well with migraine as part of an overall light management plan.
Z-Blue™
Your New Ally For Flashing Lights And Repeating Patterns
Z-Blue is your upgraded defense for visibly flashing lights and repeating patterns. From strobe lighting at concerts to intense flashing during your favorite shows or movies, this lens cuts down on the problematic wavelengths from 580-640nm to protect you from light wherever you are. If you are photosensitive and find environments with disorienting visual stimuli to be unsettling or cause you to feel overloaded, Z-Blue can help put you back in control.
Flex
Take the Edge Off Harsh Light with Our Most Subtle Tints
Flex offers all-day versatility in a modest lens, especially if you experience mild sensitivity to light. You can make them your favorite computer or screen glasses, wear them for subtle night driving protection, or simply use them any time you want to take the edge off of the irritating and/or bright light you're surrounded by—all while helping you keep a low profile. Flex is light enough that it is legal to wear while driving at night in most jurisdictions under safe conditions.*
Sleep
Promote Sleep By Blocking Blue Light Before Bedtime
Sleep is the newest addition to your evening routine. This orange lens blocks 100% of blue light which may affect sleep patterns and melatonin production. Blocking blue light before bedtime may help promote a healthy sleep cycle to help you wind down before sleep and wake up ready to take on the next day! We recommend wearing Sleep in the 2-3 hours before bedtime to enjoy its full benefits.
Contrast HEV™
Sharper Contrast For A Fresh View
Contrast HEV helps you see the world in higher definition. By filtering the high-energy visible light below 455nm that our eyes don’t focus well, this lightly tinted yellow lens brings greater visual contrast and sharpness for your favorite activities. If screens or bright lights give you visual discomfort, we suggest making Contrast HEV part of your light management toolkit. Contrast HEV is light enough that it is legal to wear while driving at night in most jurisdictions under safe conditions.*
Frequently Asked Questions about TheraSpecs
What are TheraSpecs?
TheraSpecs® are precision-tinted glasses designed to manage light sensitivity and visual discomfort—including from screens, fluorescents, blue light, sunlight, and other sources.
Made with high-clarity materials like nylon and CR-39, each lens is engineered to filter specific wavelengths of light that can worsen sensitivities. The TheraSpecs catalog features 14 specialized lens options, including core offerings like:
- FL-Pro™ & FL-Blend™: Precision-tinted FL-41 that filters the blue-light spike at 480nm emitted by fluorescent lights, computer and phone screens, and LEDs.
- FL-Sun™: Dark, polarized FL-41 protection against harsh outdoor glare and sunlight.
- Z-Blue™: Targets broad-spectrum visual stimuli like flashing lights and repeating patterns by filtering the intense red wavelengths between 580-640nm.
Available for worldwide shipping, TheraSpecs offers more than 70 frame styles and a wide range of lens types, all available with non-prescription, prescription, and reader options to ensure a custom fit for every sensitivity level.
How do TheraSpecs work? How do they manage light sensitivity?
TheraSpecs work by filtering specific wavelengths of light before they reach your eyes. Each lens targets a different range of light, which is why some are better for screens and fluorescents, some for outdoor glare, and others for flashing lights or evening blue light exposure.
In addition to precision tinting, TheraSpecs lenses also include features like 100% UV protection and protective coatings that help reduce glare and scratches. By reducing exposure to these irritating wavelengths, TheraSpecs can help make different lighting environments more comfortable for people with light sensitivity.
What lens options does TheraSpecs offer? How do I choose a lens type and tint?
The best lens depends on what kind of light bothers you most and where you need support most often. Here is a list of our lens options:
- FL-Pro™ (available in 3 strengths): offers the strongest FL-41 protection for artificial lights and digital device screens
- FL-Blend™ (available in 2 strengths): balances FL-41 protection against screen and other artificial light with more natural color perception
- Z-Blue™ (available in 3 strengths): filters the most problematic wavelengths from flashing and/or repeating lights and patterns
- Flex (available in 2 options): Uses FL-41 to take the edge off of harsh and/or bright light with our most subtle tints
- Sleep: removes 100% of blue light and may help promote healthy sleep when worn before bedtime
- Contrast HEV™: may bring greater visual contrast and comfort for screens and bright light
- FL-Sun™ (available in 2 strengths): FL-41 powered to enhance outdoor protection—the best sunglasses lens you've ever tried
You can view the lens strengths here. If you’re not sure where to start, our Lens Assistant can help narrow down the best option for your lifestyle and sensitivity needs.
What is FL-41 and do TheraSpecs use it?
FL-41 is a specialized lens tint designed to filter specific wavelengths of light most commonly associated with light sensitivity. In particular, FL-41 targets blue-green wavelengths between 480–520nm, the range where the human eye is especially sensitive. These wavelengths are commonly emitted by artificial light sources like screens and fluorescents as well as natural sunlight.
FL-41 is often recognized as a rose-colored tint, though TheraSpecs offers it in several variations—from lighter rose or plum tones to darker sunglass lenses. Our FL-41 lineup includes FL-Pro, FL-Blend, Flex, and FL-Sun. Each is designed for different environments and levels of light exposure.
Each lens type also comes in different strengths, so you can choose the level of filtering that best fits your environment and sensitivity needs. As part of a light management plan, TheraSpecs FL-41 glasses can help people live well with migraine.
Do TheraSpecs help with screens?
Yes, several TheraSpecs lenses are designed specifically for screen-heavy environments. For example, FL-Pro and FL-Blend are designed to provide the strongest filtering of the wavelengths commonly emitted by computer and device screens, while subtler options like Flex may be a good fit for milder sensitivity associated with regular screen use. Depending on your needs, other lenses like Contrast HEV or Z-Blue may also help with certain screen environments. This can make long hours in front of screens more comfortable for people with light sensitivity.
Why are TheraSpecs better than standard blue light glasses?
Most standard blue light glasses use lighter, general-purpose lenses that filter a small portion of blue light near UV. However, research on light sensitivity shows that the wavelengths most often associated with discomfort fall within a broader blue-green range (between 480-520nm), which many standard blue light lenses do not fully address.
TheraSpecs target those specific wavelengths and environments more precisely, with multiple lens options tuned for different types of lighting such as screens, artificial light, outdoor glare, and flashing lights.
What is the science behind TheraSpecs?
Each TheraSpecs lens was developed through a review of published, peer-reviewed research on light sensitivity and wavelength filtering. Rather than applying a single tint across all situations, that research informed a range of lenses designed to target the specific parts of the light spectrum most associated with discomfort in a given environment.
Because lens color alone doesn’t determine which wavelengths are filtered, two lenses that look similar can still block very different parts of the light spectrum. That’s what allows us to offer meaningful differences between lenses, not just cosmetic ones.
Can I get TheraSpecs with my prescription?
Yes. TheraSpecs frames can be made with custom prescription lenses, including single-vision, lined bifocal, progressive/multifocal, and reader options. You can also choose from our WearOver frames that fit comfortably over your existing glasses.
*TheraSpecs Flex transmits approximately 82% of all light and Contrast HEV transmits approximately 90% of all light, making them compliant with traffic laws in most places for night driving. However, users are responsible for ensuring their use complies with all applicable traffic regulations and that road lighting is sufficient for safe use. Always drive responsibly and remain attentive to the road and lighting conditions, traffic signals, and other vehicles.
1M. Tatsumoto, T. Eda, T. Ishikawa, M. Ayama, K. Hirata Light of Intrinsically Photosensitive Retinal Ganglion Cell (ipRGC) Causing Migraine Headache Exacerbation. IHC symposium OR3. 2013 June.
2Wilkins AJ, Nimmo-Smith I, Slater AI, Bedocs L. “Fluorescent lighting, headaches and eyestrain.” Lighting Research and Technology 1989 March;21(3) 1 11-18
3Fisher RS, Harding G, Erba G, Barkley GL, Wilkins A; Epilepsy Foundation of America Working Group. Photic- and pattern-induced seizures: a review for the Epilepsy Foundation of America Working Group. Epilepsia. 2005;46(9):1426-1441. doi:10.1111/j.1528-1167.2005.31405.x
4Merezhinskaya N, Mallia RK, Park D, Millian-Morell L, Barker FM 2nd. Photophobia Associated with Traumatic Brain Injury: A Systematic Review and Meta-analysis. Optom Vis Sci. 2021;98(8):891-900. doi:10.1097/OPX.0000000000001757