2 months ago
Love the concept and quality
Love the concept and quality of these glasses, but sadly found it quite tricky to find the perfect-fitting frame online.
Aleksandra B.Verified Buyer
Free delivery
(2)
Roebling Blue Light Blocking Glasses (Day) - Sazerac Crystal Anti-Fatigue
€96.91
Trusted Shops certified1
Due to high demand: only limited stock remaining in the EU warehouse
Trusted Shops certifiedProduct description
Key Benefits
- Filters blue light up to 15x more effective.
- Studies measured up to a 300% increase in melatonin levels.
- 9/10 feel reduced eye strain.
- 7/10 feel relief from headaches.
- Features a subtle +0.25 anti-fatigue boost.
Roebling Sazerac Crystal Anti-Fatigue features a proprietary blue light filtering solution designed to effectively improve the quality of sleep, reduce digital eye strain, and support clearer cognitive performance. Felix Gray reinvented blue light glasses grounded in science to reduce the impact of overexposure to high-energy visible light from digital devices and artificial lighting, which may affect sleep quality and cause visual discomfort. Its double-sided anti-glare coating reduces reflections to enhance visual comfort in various lighting conditions.
Felix Gray’s anti-fatigue lenses function as low-power readers, featuring a gentle +0.25 boost designed to ease eye strain and support near-focus tasks. This subtle enhancement helps keep your eyes feeling comfortable throughout long workdays, reading sessions, and screen use—without distorting your vision.
The lenses also offer up to 15x more effective protection against harmful blue light, along with 100% UVA and UVB protection, shielding the eyes from harsh rays without altering colour perception. Made with Grade A ophthalmic-quality materials, Roebling Sazerac Crystal Anti-Fatigue delivers sharp, distortion-free clarity. The hand-finished organic acetate frame adds refined craftsmanship to this high-performance design.
Frame Measurements
- Frame Size: Narrow/Medium
- Lens Width: 49mm
- Bridge Width: 18mm
- Temple Arm Length: 140mm
- Total Frame Width: 133mm
Why Felix Gray is Healf
Felix Gray’s lenses use a proprietary formula that filters up to 15 times more of the most impactful blue light than other clear blue light lenses. Their solutions are grounded in science and deliver a significant impact on areas that are most affected by overexposure to high-energy visible light: sleep, health and productivity. This unique protection supports the eyes during extended exposure to screens and artificial light, helping to reduce potential eye strain and disturbed sleep.
Founded in 2016, Felix Gray set out to pioneer the category of blue light eyewear, grounded in the mission to boost digital wellness, helping people live healthier, more productive lives in the modern world where artificial blue light is everywhere. The team collaborated with experts to create eyewear that blends function, science, and style. Felix Gray glasses filter blue light differently, and reduce glare without distorting colour. The brand’s lenses are backed by research and doctor-endorsed to help with eye discomfort, disturbed sleep and headache relief. With science-led design and premium materials, Felix Gray helps you protect your eyes, restore natural sleep, support recovery and unlock deeper focus during screen time.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Founded in 2016, Felix Gray set out to pioneer the category of blue light eyewear, grounded in the mission to boost digital wellness, helping people live healthier, more productive lives in the modern world where artificial blue light is everywhere. The team collaborated with experts to create eyewear that blends function, science, and style. Felix Gray glasses filter blue light differently, and reduce glare without distorting colour. The brand’s lenses are backed by research and doctor-endorsed to help with eye discomfort, disturbed sleep and headache relief. With science-led design and premium materials, Felix Gray helps you protect your eyes, restore natural sleep, support recovery and unlock deeper focus during screen time.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Suggested use
Wear two to three hours prior to bedtime to help unwind and prepare your body for sleep. Studies measured Felix Gray wearers fall asleep faster, wake up less during the night and hit REM sleep stage 35% faster.
Wear daily during screen exposure or prolonged use of digital devices to help reduce visual discomfort and maintain sharper focus. A large-scale office study demonstrated that wearers’ cognitive performance increases by 47% when wearing Felix Gray glasses during the day.
Clean lenses regularly using a microfibre cloth and lens-safe cleaning solution. Avoid abrasive cleaners and rough materials that may damage the coatings. Store in a protective case when not in use to prevent scratches or warping. Keep away from direct heat or prolonged sunlight to maintain frame integrity.
Wear daily during screen exposure or prolonged use of digital devices to help reduce visual discomfort and maintain sharper focus. A large-scale office study demonstrated that wearers’ cognitive performance increases by 47% when wearing Felix Gray glasses during the day.
Clean lenses regularly using a microfibre cloth and lens-safe cleaning solution. Avoid abrasive cleaners and rough materials that may damage the coatings. Store in a protective case when not in use to prevent scratches or warping. Keep away from direct heat or prolonged sunlight to maintain frame integrity.
Reviews
- 7 months ago
Definitely recommend
I spend all day at my laptop and on my phone for business purposes and these glasses have been perfect to block blue light, protect my circadian rhythm and sleep
Catriona J.Verified Buyer - 9 months ago
Great anti-fatigue blue light glasses
These glasses have really helped reduce eye-strain when working on my laptop during the day, and likewise during the evening when watching TV or reading before bed. A great, well-worth investment.
Kate P.Verified Buyer
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A comprehensive approach to wellbeing
Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.
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Top-tier products
If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!
Mayah
One of the best wellbeing websites I've come across.
Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.
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The best wellbeing website…
The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.
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Amazing!
Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!
Janet
Great products, service, and customer support
Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.
S Jones
I love Healf
It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.
Dillon Jagatia
A comprehensive approach to wellbeing
Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.
Jesse Hansen-Bartel
Top-tier products
If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!
Mayah
One of the best wellbeing websites I've come across.
Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.
Lydia Free
The best wellbeing website…
The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.
Alex
Amazing!
Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!
Janet
Great products, service, and customer support
Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.
S Jones
I love Healf
It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.
Frequently asked questions
How do we curate our products?
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
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The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.
How can I find out more about the ingredients in a product?
We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.
Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The DiscoveryOur approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.
Expert ValidationEach product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.
Community TestingBy collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.
