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How do TheraSpecs work?

TheraSpecs are available with a variety of light management lenses, each one precisely tinted to filter specific wavelengths of problematic light and keep you protected from whatever light may be giving you trouble. From screens, fluorescents, LEDs, flashing lights, repetitive patterns, harmful blue light, or intense outdoor sunlight, our lenses have you covered across many lighting environments.

In addition to this specialized filtering, TheraSpecs lenses block 100% UVA/UVB light and are enhanced with additional coatings to reduce glare, scratches, and smudges. They also are available in a variety of frames, many with protective features for top and side coverage.

What color are TheraSpecs lenses? Are any other colors or tints available?

TheraSpecs lenses come in a variety of tints, each uniquely tailored to address specific light-related situations. Here's a breakdown of our lens options:

FL-Pro™

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. See what this lens looks like ➜

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™

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. See what this lens looks like ➜

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.

Flex

Flex is versatility in a minimal, peach-colored lens. It delivers subtle protection against irritating light, so you can make them your favorite all-day computer or screen glasses. Flex takes the edge off of the harsh and/or bright light you're surrounded by, which may help with mild light sensitivity—all while helping you keep a low profile. Flex is light enough that it is legal to wear while driving at night in most locations. See what this lens looks like ➜

Z-Blue™

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. See what this lens looks like ➜

Sleep

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. See what this lens looks like ➜

Contrast HEV™

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 locations. See what this lens looks like ➜

FL-Sun™

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. See what this lens looks like ➜

FL-Sun also limits exposure to light, which may help people to live well with migraine as part of an overall light management plan.

Do TheraSpecs lenses come in different strengths?

Yes! Most of our lenses are available with different strength options. If you need help determining which lens type and/or lens strength is right for you, our lens assistant is here to guide you. You can also see a quick overview of each lens strength below:

• Standard strength: the go-to choice for most, offering general protection.
• Extra strength: Steps up the coverage for those seeking more protection.
• Max strength: Our strongest tint, tailored for maximum defense from light. Not suitable for driving.
• Dark+ strength (FL-Sun only): This strength offers more protection than sunglasses. It's dark and polarized.
• Ultradark+ strength (FL-Sun only): This strength is extremely dark and polarized. Not suitable for driving.

And remember, if your initial choice doesn't feel right, you can always return or exchange your non-custom pair for another strength! See our return policy for details.

Do TheraSpecs provide protection from blue light? How do they compare with other blue light blocking glasses?

Blue light encompasses various wavelengths, each impacting our health differently. Certain wavelengths are more likely to make it harder for our eyes to focus, while others are more likely to trigger different types of light sensitivity.¹ As a result, managing the type and amount of blue light to which you are exposed may be of critical importance in your daily life.

TheraSpecs offers multiple lenses that are specially designed to target different ranges of unwanted blue light, providing more protection than typical blue light glasses with clear or nearly clear lenses, which typically focus on a narrower spectrum.² Specifically:

TheraSpecs Flex is our recommendation for people wanting excellent screen or computer glasses with a minimal tint and/or if you want to use them to combat headlights while driving at night. We also suggest Flex be added to a comprehensive light management toolkit if are mildly light sensitive and want a lens that may help take the edge off harsh light. Contrast HEV is also an excellent choice for screen use, as it filters out high-energy visible light, which our eyes struggle to focus well.

If you’re living with more prominent light sensitivity, we recommend you add FL-Pro to your light management plan for extra protection against harsh blue light. FL-Blend provides similarly effective shielding, but trades some protection for a softer plum-colored tint. Both styles target blue light near 480nm to keep you protected against screens, fluorescents and LEDs, and other artificial sources.

Designed to block all disruptive blue light, our Sleep lenses specifically target the wavelengths that may affect melatonin production and sleeping patterns. Wear them for 2-3 hours before your bedtime so that you may maximize their sleep-enhancing benefits.

Do TheraSpecs use FL-41?

We carry a few lenses that are made with FL-41! Wearing FL-41 lenses reduces the irritating light between 480-520nm, which can be helpful for managing general sensitivity to light. Furthermore, by controlling exposure to these wavelengths, TheraSpecs FL-41 glasses may help people to live better with migraine, if that is a source of their sensitivity, as part of an overall light management plan.

FL-Pro is the original FL-41 lens that our customers have come to know and love for more than a decade. Along with our FL-Blend lens, they are engineered to filter 480-520nm wavelengths that are present in artificial lighting sources, such as fluorescents, LEDs, TVs, and computer and phone screens. FL-Pro provides enhanced protection by blocking more of the troublesome light wavelengths, while FL-Blend offers a subtler tint for those who prefer more natural color perception.

FL-Sun helps you step into the sun more confidently, featuring FL-41 in a dark, polarized lens that effectively reduces glare. FL-Sun Dark+ strength lenses offer unparalleled protection over traditional sunglasses with its advanced filtering of 480-520nm. If you need an even darker lens for outdoor use, we also offer FL-Sun lenses in Ultradark+ strength.

For those who are wanting protection while nighttime driving, Flex is a great option. Light enough to meet legal requirements for driving at night, they help manage the interference of oncoming headlights.

Learn more about FL-41's benefits and why TheraSpecs FL-41 glasses continue to benefit customers all over the world.

When, where, and how often should I wear TheraSpecs?

TheraSpecs are designed to protect you from problematic light. Wearing them around the light sources that give you trouble will help you enjoy their full benefit. If you're not sure where best to use them, start by wearing your non-polarized TheraSpecs designed for indoor use whenever you're exposed to artificial light (except for TheraSpecs Sleep, which should only be worn in the 2-3 hours before bedtime). Wear your polarized TheraSpecs outside to protect you from sunshine. After a few weeks of consistent use, you should be able to identify the most problematic light sources and can adapt your use accordingly.

Customers have also told us they use TheraSpecs at the onset of a light-sensitive episode that’s already begun, especially if they catch it early. For example, Barbara from Tampa shared this: "I have really seen an improvement using my glasses. When I don’t [feel light sensitive], it helps with my eyes not getting too tired. Sometimes they hurt a lot when I read or if I am exposed to fluorescent lights for a long period of time at work. When I have an [attack], it helps me with the light sensitivity. Honestly, it’s the best decision I’ve made."

Regardless, TheraSpecs can protect you by helping take the edge off the surrounding light.

You can wear your "standard" and "extra" tinted TheraSpecs for as long as you wish each day. For the times that the "max" tint level is needed, we recommend wearing them only when necessary since they block out the most light of the non-polarized tint levels. We recommend wearing polarized FL-Sun™ TheraSpecs only when you are outdoors or exposed to bright sunlight, since wearing sunglasses inside can increase sensitivity to light through a process called dark adaptation. (Learn more here.)

Will TheraSpecs help me?

Each TheraSpecs lens was developed after our exhaustive review of decades of published, peer-reviewed research about light and the effects of filtering some wavelengths of light to create the best lenses for specific lighting conditions and sensitivities. Plus, our team is committed to helping you find the right pair of TheraSpecs that fits your needs, and we offer 60 days for returns and exchanges so you can make sure you love your glasses.

Furthermore, 93% of TheraSpecs customers find our glasses helpful for a wide range of needs, and more than four out of five would recommend TheraSpecs to a friend or colleague.³ They share their stories with us daily, highlighting the protection they enjoy with our glasses. You can read about their experiences on our website or Instagram.

Lastly, a wide range of medical professionals, from light sensitivity specialists and neurologists to physical and occupational therapists, recommend our lenses for light management.

We encourage you to give TheraSpecs a try today and see if they can help you with the problematic light in your life!

Can TheraSpecs make looking at screens more comfortable?

TheraSpecs offers specialty tints to provide protection from the irritating wavelengths (including unwanted blue light) that are emitted by our computer and device screens. Here are some options based on your needs:

TheraSpecs Flex

TheraSpecs FL-Pro or FL-Blend

TheraSpecs Contrast HEV

TheraSpecs Sleep

Z-Blue

To find the best lens for you, use our lens assistant!

Beyond blue light, there are other reasons that looking at a computer may make you uncomfortable. Talk to your eye doctor about other negative effects associated with computer use if you haven't already. Reading glasses or eye drops may help, too. (And if you need reading glasses, we can create readers or reader bifocals in TheraSpecs frames or a frame you own. Just choose the correction type "reading glasses" on any individual style page.)

How long may it take for TheraSpecs to help?

Every person is unique! While many people love their TheraSpecs as soon as they put on their glasses, some may take a bit longer to adjust to the tint. We recommend wearing them as long as you’re comfortable, gradually increasing your use each day over 2-3 weeks. Wear your specialized TheraSpecs whenever you want to manage the light from problematic sources, be it bright sunlight, fluorescents, LEDs, or other artificial lighting.

Try out our ready-made TheraSpecs for 60 days, risk-free. If you decide to try a new style or lens type, or if you need to return them for any reason, our dedicated care team is here to assist you at contact@theraspecs.com.

Does scientific research support TheraSpecs?

We’re on a mission to truly help people and create products that deliver effective protection through the filtering of disruptive light. We keep on top of decades of published, peer-reviewed research articles about light and the impact of filtering certain wavelengths in order to develop one of the most comprehensive lens offerings on the market for specific lighting conditions that align with your needs. You can view a full list of clinical research references on our website.

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Can I get TheraSpecs with prescription lenses?

Yes, we can create prescription TheraSpecs lenses. We can make them either in our frames or frames you provide. We can work with almost all prescriptions including bifocal and tri-focal lenses, progressive lenses, and prisms. On our shop page, simply click on the lens you are interested in, then choose the style(s) you want, select correction type "Prescription," and fill out the remaining details to complete your order. We can also make TheraSpecs in full- or partial-lens readers; just choose correction type "Reading Glasses."

How do I order original indoor and outdoor TheraSpecs?

For original indoor TheraSpecs, choose FL-Pro™ in extra tint. It’s the same tint level and now includes anti-reflective coating to provide more protection from reflections.

For original outdoor TheraSpecs, choose FL-Sun™ in Dark+ strength.

If you love your original indoor TheraSpecs and are interested in trying a lighter or darker tint for different lighting conditions, check out the other lens strengths offered under FL-Pro. It’s the same great tint, just in varying darkness. If you’re looking for a tint that is darker than our original outdoor lens, we also offer FL-Sun glasses in Ultradark+ strength.

And if you need help for driving at night, TheraSpecs Flex is also based on our original lens and takes the edge of headlights and streetlights in a tint light enough to be legal for driving after dark.

How big are the different styles? Where can I find frame measurements?

Each product page on our website includes frame measurement information. You can also compare different styles below. In addition, when viewing all the styles for each particular lens (e.g. FL-Pro), you will see helpful filtering options for frames that are better suited for smaller or broader faces, offer side protection, are extra lightweight, and more.

Style	Hinge-to-Hinge	Lens Width	Bridge Width	Temple Length	Lens Height	Weight (all lenses)*	Weight (FL-Sun only)
Archer	130mm	61mm	19mm	130mm	44mm	33.2g	38.3g
Audrey	128mm	50mm	18mm	144mm	41mm	24.5g	27g
Betty	124mm	53mm	16mm	138mm	38mm	15.5g	17.5g
Classic	128mm	50mm	19mm	150mm	38mm	25g	27.5g
Conrad	132mm	58mm	17mm	146mm	40mm	31.5g	34.5g
Esme WearOver	146mm	60mm	16mm	141mm	54mm	30.4g	33.9g
Falcon	140mm	60mm	14mm	135mm	54mm	29.5g	33.5g
Fremont	136mm	52mm	18mm	145mm	42mm	17g	19.5g
Graham	136mm	54mm	20mm	147mm	43mm	30.5g	33.5-34.5g**
Haven	128mm	55mm	19mm	140mm	32mm	20g	23.5g
Lane	122mm	49mm	20mm	140mm	39mm	22g	25g
Mercer	138mm	53mm	17mm	141mm	36mm	17g	19.5g
Nolan	133mm	55mm	17mm	145mm	44mm	30.1g	33.2g
Original WearOver	148mm	63mm	14mm	146mm	43mm	37.5g	41.5g
Osborn	135mm	50mm	20mm	138mm	48mm	19g	22g
Petite Wrap	132mm	57mm	18mm	120mm	33mm	21g	24.5g
Pilot	132mm	57mm	17mm	138mm	45mm	24g	28.5g
Powell	134mm	52mm	18mm	143mm	47mm	21.5g	24.5g
Quinn	130mm	53mm	17mm	142mm	38mm	23g	25.5g
Reyna	130mm	54mm	18mm	135mm	42mm	43g	45.5g
Stella	128mm	62mm	17mm	131mm	41mm	29g	33.5g
Tatum WearOver	144mm	58mm	16mm	138mm	44mm	26.5-28g**	30.5-32g**
Vista	130mm	53mm	18mm	140mm	46mm	29g	32g
Winslow	130mm	52mm	20mm	147mm	40mm	29g	32g
Wrap	137mm	65mm	18mm	120mm	37mm	25.5g	30g
Style	Hinge-to-Hinge	Lens Width	Bridge Width	Temple Length	Lens Height	Weight (all lenses)*	Weight (FL-Sun only)

*Weight (all lenses) column is for all lens options except FL-Sun.
**This frame has slight variations in weight based on frame color.

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For petite faces, we recommend Lane, Betty, and Petite Wrap, which are our smallest styles. Even though they are a bit larger, Audrey, Classic, and Pilot look great on smaller faces and are quite popular among customers who prefer petite frames.

For customers with wide faces, Winslow, Pilot, Conrad, Haven, and Fremont are the most popular. Because they have metal nosepieces, they are easily adjusted to fit a wide variety of faces. (Customers who normally wear frames that are 155 mm wide find these styles very comfortable once adjusted.) Stella, Wrap, and WearOver are our widest frames.

Do you have a frame style(s) for kids?

We have several frames available for children and those with smaller faces, including our Petite Wrap style. In addition, many of our other styles (Lane, Classic) will also fit most kids elementary school-aged and older. In addition, you can always send us a frame that you know your child will wear and we'll mount TheraSpecs lenses in it.

Lastly, if you have a child age 5 or younger that may benefit from TheraSpecs, reach out to us at contact@theraspecs.com. We may have additional options available for you.

What if I want a different frame style than TheraSpecs offer? Can I send you one of my frames?

If you want a style we do not offer, we can always put our lenses into any frame that you like and send to us! To order using one of your frames with or without prescription, visit theraspecs.com/siyof. You can also reach out to our team for additional support or questions.

After you've finished placing a "Send In Your Own Frames" order, you’ll receive instructions on how to send us your frames and next steps. Once your frames arrive in our office, we'll send a confirmation email and start crafting your new lenses!

Can I wear TheraSpecs over prescription glasses?

We designed our Original WearOver, Tatum WearOver, and Esme WearOver frames specifically for this purpose.

Can I wear TheraSpecs over contact lenses?

Absolutely!

Are TheraSpecs safe for driving at night?

We offer two specialized lenses designed for night driving, catering to different needs. Contrast HEV may help enhance visual contrast and clarity while on the road. If you’re living with light sensitivity which is affecting your night driving experience, adding Flex to your light management toolkit may make it more comfortable for you as it’s designed to offer the strongest legal tint to reduce the harsh light of oncoming headlights.

Are TheraSpecs polarized?

Yes, FL-Sun is polarized to block glare from cars, water, and roads, making them ideal for outdoor use! We've chosen not to incorporate polarization in our other lenses for two important reasons:

1. Polarization can make it challenging to read from computers, TVs, and tablets.
2. Polarization darkens glasses too much for comfortable indoor use, leading to chronic dark adaptation.

Are TheraSpecs UV blocking?

Yes, all standard, non-prescription TheraSpecs provide 100% UVA/UVB protection. Most of our prescription and reader options do as well, but if you'd like to know about a specific option, you can contact our customer care team at contact@theraspecs.com.

Are TheraSpecs lightweight and comfortable to wear?

We test every frame for comfort and our customers tell us we have succeeded. We make every style as lightweight as possible, and they are all adjustable so that you can be sure they don't squeeze or irritate your head. If you are particularly concerned about the fit or feel of a frame, our customer care team can help you find a good style for your needs. Only you can know for sure, though. If you don't think your pair is comfortable, you can always exchange them or return them for a refund. Also, if you have a pair of frames you love, we can put TheraSpecs lenses into them. Contact us for details.

Do you make transition (darkening) lenses?

We do not because we have found that transition lenses do not darken enough, or quickly enough, to provide adequate protection outside for bright sunlight. We have found it is far more effective to have separate lenses for use inside and outside.

Do TheraSpecs protect against scratches and reflective glare?

Absolutely! TheraSpecs lenses come with scratch-resistant coating that's carefully designed to reduce scratches and prolong the life of your glasses. While no coating can completely eliminate scratches, ours significantly reduces their likelihood. We also equip our lenses with anti-smudge and anti-reflective coatings to ensure clear vision through the lenses and reduce distracting reflections from the lens surface. Additionally, our lenses also provide 100% UVA/UVB protection!

To keep your TheraSpecs in the best condition, store them in their dedicated case and clean them simply: rinse under running water and gently dry with a clean microfiber cloth.

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Are TheraSpecs available in stores near me?

TheraSpecs can only be purchased online. We know that buying glasses online can be intimidating for some people—what if they don’t fit? What if they don’t work for me? What if I don’t like the frame style? That’s why we have tried to make buying over the internet as smooth as possible with:

• Detailed measurements of every frame style
• Photos and reviews from real TheraSpecs customers on every style page
• Available free shipping in the United States
• A responsive customer care team available via phone, chat, and email
• Our 60-day no-hassle return and exchange policy

Do you ship outside the United States? To Canada, the UK, Australia, etc.?

Absolutely! We are able to ship TheraSpecs to most countries all over the world, including Canada, the UK, other countries in Europe, Australia and more. We offer a variety of shipping options and prices,* which you can see in the cart or at checkout after filling in your address information. You can also connect with our team to get shipping details for your country.

*Please note that import duties, taxes, and related charges are not included in item price or shipping cost. These fees, if applicable, will be charged to you at the time of import prior to final delivery. We recommend using an online calculator to help you estimate the amount.

How long will it take to get my TheraSpecs?

We usually ship non-custom TheraSpecs on the same or next business day after we receive your order. Delivery time depends on your location and the shipment method you choose. Custom orders—like prescription lenses, readers, and special orders—take additional time (approximately 3 weeks) to make at our lab. Shipping times are the same once we get them back from the lab. Click here for more shipping details.

What if I need a different size or frame? Can I exchange my TheraSpecs for another style?

You sure can! We offer exchanges for any ready-made TheraSpecs within 60 days of purchase. Learn more about how to request an exchange and other details at theraspecs.com/exchanges.

What is your return policy?

While TheraSpecs help the vast majority of people who wear them, we know every brain is different. That’s why we believe in no-hassle returns and exchanges. You can return undamaged, non-custom TheraSpecs within 60 days of purchase for a refund or exchange them for another frame style or lens option. Custom products are not eligible for returns or exchanges. Clearance items cannot be returned, but exchanges are welcome for non-custom clearance products. We encourage you to read our full return policy to learn more.

Are TheraSpecs covered by insurance?

While we are unable to bill insurance companies directly, many of our customers have received reimbursement for their TheraSpecs purchase from their insurer. Every insurance company has different requirements for reimbursement, so we recommend contacting your insurer to learn what they need. Most often they will require an order for TheraSpecs from your doctor and some sort of detailed invoice from us. We are happy to create documentation that matches their requirements. If you have any questions please contact us. Our team would be happy to help you with the details.

Can I pay for TheraSpecs using my HSA or FSA (Health Savings or Flexible Spending Account)?

TheraSpecs are HSA and FSA eligible and you can use your card for payment when you check out online. That process usually goes smoothly, but sometimes there’s a hiccup when insurance companies need to approve new vendors. If the transaction doesn’t go through, contact your health insurance company or card issuer to ask them to approve TheraSpecs as a vendor. We can also provide the medical description of TheraSpecs, if required.

Do you have any coupon codes available?

You can see available promotions and discounts here. You can also buy more and save by getting $20 off when you buy two pairs of TheraSpecs and an extra $10 off for every additional pair in the same transaction.

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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

²Visible light transmission by wavelength of TheraSpecs, Warby Parker, and Felix Gray, as measured by TheraSpecs Company using f.luxometer software https://fluxometer.com/page/measure/

³Based on internal data as of May 2024 of the number of customers who keep their TheraSpecs product instead of returning.