ZEISS BlueGuard Lenses: Where Innovation Meets Comfort
The Next Generation of Blue Light Blocking Lenses
ZEISS BlueGuard Lenses are the latest innovation in blue light eye protection, providing comfortable vision and excellent clarity and aesthetics, while blocking up to 40% of blue light.
Research has shown that we spend nearly 8 hours a day in front of digital screens which creates new challenges for our eyes. ZEISS BlueGuard Lenses are manufactured using the latest organic-chemical technology and can provide protection against digital eyestrain and potential UV damage to one’s eyes.
The Dualism of Blue Light
The human eye evolved under sunlight, the most natural source of blue light. But LEDs and digital devices are a significant contributor to eyestrain and even more so when exposed to artificial or digital sources of blue light.
Artificial, blue light-generating devices are everywhere. Blue light can have both positive and negative effects on our eyes – increased exposure to blue light may have an impact on eye health. It is scientifically accepted that blue light has both positive and negative effects on our vision, mood and sleep.
The visible light range for the human eye is between 380 and 780 nm. The blue light band, between 380 and 500 nm, is an essential part of the spectrum that is relevant for proper vision performance and some physiological processes.
Recent reports* suggest minimizing the generation of blue light up to 455 nm and maximizing longer wavelengths to avoid interfering with the circadian rhythm and other functions. Consequently, ZEISS BlueGuard Lenses were designed to partially block blue light between 400 and 455 nm but allow transmission of longer wavelengths.
Google searches show people are actively looking for solutions to digital eyestrain. Now more than ever, consumers are seeking products that offer blue light protection because they are worried about the impact on their health and sleep.
It’s a Lens Design not a Lens Coating
As more people spend extended hours in virtual meetings, the demand for blue blocking lenses have increased. The prominent blue-purple reflections from blue light coatings are increasingly apparent and can affect a person’s appearance.
Due to the integrated design of ZEISS BlueGuard Lenses, they produce up to 50% less visible blue light reflections of digital blue light compared to blue light coatings when used with ZEISS DuraVision Platinum UV antireflective coating. The result is blue light protection, full UV blocking, comfortable vision, excellent lens clarity and superb aesthetics.
Blue Light and Digital Eye Strain
Many people today experience digital eye strain as they spend hours at screens. DES symptoms include: glare/dazzle, discomfort, blurred vision, accommodation stress and dysfunction, fixation disparity, pain in or around the eyes, dryness and eye fatigue.[1], [2]
Blue light is thought to potentially contribute to digital eye strain, causing symptoms like blurred vision and tired eyes.[3] When blue light reaches the eye, it enters through the ocular media and travels to the retina where it may induce opto-physical effects.
The ZEISS BlueGuard Solution
ZEISS lenses protect against blue light and UV radiation. These two properties are combined into the all-new ZEISS BlueGuard Lens.
ZEISS BlueGuard is a single solution that combats the potential negative effects of blue light while providing eye protection from UV. It blocks up to 40% of the blueviolet spectrum[4], 400 to 455 nm, while transmitting beneficial wavelengths, 455 to 500 nm. By blocking blue light in the material, ZEISS BlueGuard reduces digital blue light reflections up to 50% compared to typical blue light coatings.[5]
ZEISS BlueGuard Lenses not only block out potentially harmful blue light, they also provide full UV protection, shielding your eyes against harmful UV radiation up to 400 nm.
ZEISS BlueGuard is available in all common plastic lenses with indexes 1.50 to 1.74.
You’ve surely had experience with blue light blocking glasses. ZEISS BlueGuard lenses are the next step in blue light blocking technology. These glasses are designed specifically to block blue light and UV while preserving the aesthetics of normal glasses, especially while online.
If you want to learn more about how these lenses will fit into your practice we will have your ZEISS Business Development Representative reach out to you.
Let us know what you think-we can’t wait to hear from you!
References
[1] Rosenfield M. (2011). Computer vision syndrome: a review of ocular causes and potential treatments. Ophthalmic Physiol Opt., (5):502-15.
[2] Sheppard A.L., Wolffsohn J.S. (2018). Digital eye strain: prevalence, measurement and amelioration BMJ Open Ophthalmology, BMJ Journals
[3] Coles-Brennan C., Sulley A., Young G. (2019). Management of Digital Eyestrain. Clin Exp Optom, 102(1):18-29.
[4] Inhouse measurements and calculations based on the BVB (Blue-Violet-Block) metric. Analyses by Technology and Innovation, ZEISS Vision Care, DE 2020. *while blocking up to 40% of blue light.
[5] Inhouse measurements and calculations based on the DBRLED (Digital Blue
Light Reflection) metric. Analyses by Technology and Innovation, ZEISS
Vision Care, DE 2020. *Due to the integrated design of ZEISS BlueGuard Lenses, they produce up to 50%**less visible blue light.
UV rays from the sun can cause short-term and long-term damage to both the eye and its surrounding tissue (known to doctors as the external ocular adnexa). Short-term damage comes from UV-B rays primarily, and includes corneal burns (photokeratitis), conjunctivitis, and sunburned eyelids. UV-A rays (320-400 nanometers) can be attributed to long-term problems such as cataracts, photoaging, and even skin cancer. These rays penetrate the deepest into the skin and eyes. To protect your eyes as well as you can, it is important to select eyewear with UV protection which covers the entire UV spectrum up to 400 nm.
