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Blue light glasses: what they do and when they are worth it
Blue light glasses reduce the high-energy light from screens that reaches your eyes. Not all of them do the same thing: most only act on part of the blue light. The ones worth buying selectively filter blue light (380-500 nm) and green light (500-590 nm) and have research behind them.
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Computer glasses: how to choose the right ones
Good computer glasses selectively filter the blue (380-500 nm) and green (500-590 nm) light from your screen, don't change colours, are lightweight and include your prescription if you need one. For eight-hour days, choose an almost transparent lens such as Naut Clear.
Prescription blue light glasses: options and prices
If you wear glasses, the most comfortable option is a single frame with your prescription and filtering of blue (380-500 nm) and green (500-590 nm) light. Reticare offers prescription Naut (€469, made to your exact prescription) and Naut reading glasses with fixed diopters (€269) for close-up vision.
Blue light glasses for kids: what you need to know
A child's eye lets more light through to the retina than an adult's, because the crystalline lens is almost transparent. If your child uses a tablet, phone or console every day, blue light glasses for kids and a protector on their screen reduce the high-energy light (380-500 nm) that reaches their eyes.
Digital eye strain: symptoms and what to do
Digital eye strain appears after hours of computer or phone use: dry eyes, stinging, blurred vision and headaches. It is relieved with breaks (the 20-20-20 rule), blinking more, adjusting your screen and reducing the high-energy light (380-500 nm) that reaches your eyes. If symptoms don't go away, see your ophthalmologist.
Green light glasses: what they are and why you need them
Green light glasses filter the 500 to 590 nm band, which LED screens emit in large amounts and which almost no blue light glasses take into account. Reticare Naut selectively filter blue light (380-500 nm) and green light (500-590 nm), based on UCM research.
The glasses from the Complutense University of Madrid
The glasses from the Complutense University of Madrid are Reticare glasses. They come from more than 20 years of research by Dr. Celia Sánchez-Ramos's group (UCM) on the effect of blue light (380-500 nm) and green light (500-590 nm) on the retina, and the technology is protected by more than 18 international patents.
Blue light screen protectors: do they work?
A blue light screen protector works if it has a layer that selectively filters high-energy blue light (380-500 nm) before it leaves the screen. Its advantage over glasses is that it always works, without you having to remember. Reticare has protectors for phones, tablets, laptops, monitors and TVs, developed with the UCM.
Phone and computer blue light filters: are they enough?
The blue light filter on your phone or computer (Night Shift, Night light, night mode) shifts the screen towards warm tones and reduces some blue light, but it doesn't eliminate it and almost nobody uses it during the day. A physical protector filters high-energy light (380-500 nm) all the time. The most complete option is to use both.
Daily exposure to toxic light is already a visual health problem
We live in a paradox: never before have we had so much information before our eyes, yet never before have we put our vision at such risk to consume it. In the last decade, the way we illuminate the world has drastically changed with the arrival of LED technology in our mobile phones, tablets, and computers.
The child's eye: An open window to radiation without natural protection
Having a completely transparent lens, evidence confirms that the infant retina receives 3 times more toxic light than that of an adult.
The Green Light Problem: The toxic spike that most glasses ignore
Modern screens have triggered increased green light emission. Protecting yourself only from blue light lets 50% of harmful direct energy pass through to your retina.
The Truth About Blue Light Glasses: What the Science Says in 2026
Do blue light glasses really work or is it just marketing? We analyze current scientific evidence, the true danger of screens, and how to protect your eyes without altering your body.
Does blue light really damage the retina? Medical and cellular evidence in 2026
Beyond eyestrain: what happens microscopically at the back of your eye when exposed to LED screens and why modern ophthalmology speaks of phototoxicity.
From the 90s to 2025: How the emission of toxic light on your screens has soared
We compare the light emission of an old monitor versus a current mobile phone. The result is alarming: the intensity of toxic light today is 20 times more powerful.
