ZEISS BlueGuard Lenses | Blue light blocking lens technology (2024)

FAQs

ZEISS BlueGuard Lenses | Blue light blocking lens technology? ›

What makes ZEISS

Nowadays harmful blue light can even be blocked through the lens material itself. ZEISS BlueGuard lenses incorporate blue light blocking properties into lens the material: they offer total UV protection and block up to 40%¹ of potentially harmful blue light.

93% of wearers feel less digital eye strain. Up to 50% fewer reflections of digital blue light compared to our ZEISS DuraVision BlueProtect lens coating. 95% of wearers prefer ZEISS BlueGuard over their previous lenses.

ZEISS BlueGuard technology reflects 50% less blue digital light than even our ZEISS DuraVision BlueProtect lens coating³ – for less glare and clearer vision. Unlike many others, ZEISS lenses with BlueGuard have blue light blocking technology in the lens material itself.

That said, blue light can suppress our natural melatonin production, making it hard to sleep if there is increased screen exposure at night. So while the glasses will not protect you from long-term retina damage, and may not safeguard against eye strain, they can be a useful tool for screen use in the evenings.

BlueGuard^® Lenses by ZEISS provide full UV Protection and now additionally blocks up to 40%¹ of potentially harmful and irritating blue light.

The blue sky test

Wait for a clear day, then point your glasses at the sky. The lenses appear clear when worn normally, but they have a little yellow tint when they filter blue light. You can observe the light being filtered when looking through the lenses at a bright blue sky.

There are several possible answers to this question as it depends on individual preferences and needs. However, many people find that Crizal lenses offer superior clarity and protection from glare and scratches, while Carl Zeiss lenses are known for their exceptional sharpness and color reproduction.

Beginning with Gemini 4, ZEISS cameras and lenses became part of the astronauts' standard on-board equipment, helping to document the missions and serve as a basis for analyses.

An August 2023 study also found the same. This study published in the Cochrane Library reviewed 17 studies from 156 participants and found that using blue-light filtering glasses does not ease eye strain in comparison to standard lenses.

Why are ZEISS lenses expensive? ›

Build quality - Zeiss lenses are all metal body and high quality glass. Their lenses outlast most other lenses. Country of manufacture - Zeiss lenses are made in Europe which is a high cost location while Canon and Nikon lenses are made in Japan, a lower cost location.

They help your eyes by blocking the potentially harmful segment of blue light rays that could cause symptoms like tired or dry eyes, blurred vision and headaches.

Zeiss is actually a better known name . They have been making optical instruments many years before Essilor even existed. So some just go by the name they know better. Both are actually equal in quality for the lenses .

Blue light glasses, which aim to block the blue light waves, claim to improve sleep and reduce digital eye strain. Wearing blue light glasses isn't harmful to your eyes, so you could wear them all day if you wanted, but it may not eliminate digital eye strain entirely.

Potential Disruption of Sleep-Wake Cycle: While blue light-blocking filters can be beneficial for reducing blue light exposure in the evening, using them during the day may interfere with your natural circadian rhythm. Daytime exposure to blue light is essential for alertness and maintaining a healthy sleep-wake cycle.

While blue light glasses won't correct your vision, they may help you see more clearly while driving at night. Luckily, the coatings and tinted lenses on blue light glasses don't only block the blue light from screens. They also reduce glare by scattering the blue light from these light sources.

Brown is a more effective filter of blue light than gray, and yellow/amber are ideal for filtering blue light that causes eye fatigue and strain. Make sure your patients know that just because their light-reactive lenses seem crystal clear, they're actually still offering protection with a slight yellow hue.

ZEISS clear organic lenses provide UV protection up to 400 nm. That's the same amount of protection provided by sunglasses and the standard recommended by the World Health Organisation.

As a result, ZEISS BlueGuard Lenses block up to 40 percent³ of potentially harmful blue light in the wavelength between 400 and 455 nm. Based on proven UVProtect technology, ZEISS BlueGuard Lenses additionally ensure full UV protection up to 400 nm.

Does Anti-Glare Block Blue Light? Unfortunately, glasses with anti-glare lenses are not typically crafted to block blue light. If you're looking for eyewear that will help you with this particular problem, you should look into your options with blue light filter glasses.