Blue Light Protection

There has been a lot of speculation that blue light is detrimental to your eyes’ health and increased screen time is damaging to your eyes resulting in eye-strain, headaches and sleep deprivation. To combat this, blue light blocking lenses have been developed to help provide your eye with more visual comfort when faced with blue light from the sun and screens.

At PRETAVOIR, we offer both blue control glasses ready made [from brands such as Tom Ford & Blueberry] and we offer blue light control coatings on all our optical lenses.

Eyewear to block blue light has become increasingly popular and understandably there are some questions regarding how it can help protect your eyes from computers & improve your sleep quality...

We have compiled some questions and answers below but if your question hasn't been answered please feel free get in touch.

Without getting too much into the intricate physics behind how light travels through your eye we can briefly explain there is an inverse relationship between the wavelength of light rays and the amount of energy they contain. Blue-light is on the shorter side of the light spectrum meaning this type of light contains more energy.

Sunlight is the number one source of blue light.

However, there are many indoor sources of blue light such as fluorescent and LED lighting. The most common being the display screens on our computers, smartphones, televisions and tablets. These digital devices emit significant amounts of concentrated blue light directly into our eyes with each use.

The human eye is very effective at blocking UV rays from reaching the light-sensitive retina at the back of the eyeball. However, when it comes to blue light virtually all light passes through the cornea and lens and reaches the retina. It is thought that too much exposure to blue light can affect light-sensitive cells in the retina. This causes changes that resemble those of macular degeneration, which can lead to vision loss.

Everyday side effects of blue light are that it can interfere with your sleep quality, cause screen-induced migraines and lead to eye strain.

You have probably noticed more technology such as smart phones and laptops offering you 'night-mode' options?
Blue light lenses work in a similar way...

More than any other colour, blue light confuses your body by blocking a hormone called 'melatonin' which can make you feel tired. So, if we spend a lot of time staring at screens our bodies may artificially feel awake and subsequently we take longer to fall asleep.

As blue light glasses are relatively new to the market there is not a lot of research to prove their immediate benefits however it has been widely recognised that blue light blocking lenses minimize eyestrain, improve your sleeping habits through increased visual comfort.

No. You don't require a prescription lenses to order blue light glasses.

Computer glasses are a great way to combat the blue light exposure from computers and other digital devices. You can purchase these as special-purpose glasses without a prescription. This can be beneficial if you have no need for vision correction or if you routinely wear contact lenses.

If you require a prescription lenses then when you're ordering your glasses on our site, simply click ‘add optical lens’. You will see a section to either upload, call or email your details. If you don't require a prescription lens, then opt for 'I will call or email my prescription' and let us know you're only requiring the coating. Then you can choose your brand, we offer lenses from WLC, Kodak and Zeiss in a variety of packages.

Each brand provides an option to add a blue light coating:

- Bluemax Ultra with WLC Lenses
- BLU Protect Kodak Clear with Kodak Lenses
- Blue Protect Dura Vision Platinum with Zeiss Lenses

Please ensure you select your preference in the Lens Features when ordering.

You can add a blue light coating to any prescription eyewear for an added fee of £30.
The overall cost of your purchase will vary depending on your choice of frame, lens brand and package.

You can find out more information on ordering your lenses here.

Blue Max Ultra exclusively from WLC aims to block out the harmful blue-violet light, only permitting the beneficial light to pass through. Their specially developed coating maintains clear vision through the lens and does not alter colour perception all while reducing stress on eyes caused by constant refocusing. On top of this, WLC's Blue Light Lenses come with anti-static, scratch resistance, anti-reflection and super hydrophobic coating.

Blue Max Ultra Coating = +£30

KODAK BluProtect Lenses are designed to filter out unwanted blue light rays and allow light wavelengths that help regulate a healthy sleep cycle to pass through. They’re designed to efficiently manage light and make viewing over longer periods of time more comfortable, whilst increasing visual contrast. Objects are better defined, leaving you with clearer and sharper vision, and hopefully a great night’s sleep.

BluProtect Coating = +£30

DuraVision® BlueProtect UV is a coating specifically developed for people who spend a lot of their time indoors and are exposed to blue-violet light from LEDs as well as TV, computer or tablet screens.

ZEISS offers a comprehensive blue-violet light blocking portfolio that meets different consumer requirements for indoor and outdoor activities. The range of products filter different amounts of blue-violet light depending on the activity.

DuraVision® BlueProtect by ZEISS coating is a unique, high-performance product that offers:

An increased reflectance in the blue-violet spectrum of light.Selective attenuation of the blue-violet light passing through the lens.A reduced amount of blue-violet light entering the eye.

DuraVision® BlueProtect coating has a blue light filter which attenuates blue light in the range from 390 to 440 nm, still letting the “healthy” blue light through that our bodies need, thereby providing greater visual comfort. In addition to blocking blue-violet light, ZEISS DuraVision BlueProtect comes with premium features of ZEISS coatings, including :

A superior hard coat.Easy to clean lenses to provide better vision.DuraVision Platinum UV on the backside of the lens.

DuraVision Blue Protect Coating = +£30