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Blue Light: Effects on Sleep

Effects of blue light

It can cause dry eye, migraines, irreversible vision loss, and difficulty sleeping.

Numerous scientific studies warn about the health risks associated with the light emitted by screens.

Overexposure to high-energy light can produce:

  1. Retinal phototoxicity that can damage retinal cells and increase the risk of macular degeneration or irreversible central blindness.

  2. Photo-oxidation of the lens, which can lead to early cataracts.

  3. Disturbances in the circadian cycle that distort the quality and quantity of sleep when looking at screens at night without protection.

The effects of blue light from screens: it is TOXIC for your eyes

According to Reticare, the world leader in protection against Blue Light, which has a scientific team from Universidad Complutense de Madrid (UCM) and two Nobel Prize winners as scientific advisors, the light emitted by screens is TOXIC for your eyes.

Reticare points out that both in-vitro and in-vivo studies indicate that high-intensity light emitted by LED screens can damage the retina, even with moderate use.

It has even been documented that exposure to smartphones at night can cause transient blindness and mentions cases of women aged between 22 and 40 experiencing temporary blindness for 5 to 20 minutes.

This problem of the effects of blue light is even worse in children since it is estimated that they can receive up to 3 times more high-energy light in their retina than an adult using the same screen. This is because they have much less protection than adults.

The so-called Blue Light is emitted by laptop screens, smartphones, tablets and monitors, televisions.

In addition to the harmful effects on the eyes, high-intensity light affects circadian sleep rhythms, making it difficult to sleep well.

The groups at greatest risk are:

  • Children and adolescents.

  • Patients with eye problems, especially retina issues.

  • Digital workers.

  • Elderly people.

  • Diabetics.

To reduce eye toxicity and prevent sleep disorders, it is recommended, especially for these at-risk groups, to apply high-intensity light protectors on all screens that are used.

You can find more information about the types of protectors you can use at Reticare's store.


Reticare, the world leader in blue light protection, offers an exclusive discount for our customers. To use it, simply enter the code Sleep_Ret when purchasing a Reticare product for Smartphone, Tablet, Laptop or Monitor in their online store and save 10%.

Take advantage of this opportunity now! Conditions: Exclusive promotion for deliveries in Europe. Valid until 08/01/2023 or while coupon stock lasts.


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