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Living in the digital age means people use their electronic devices, including phones, tablets, and computer screens, for extended periods. With this in mind, companies are now selling blue light screen protectors that reportedly block blue light and may benefit eye health.

In 2020, the COVID-19 pandemic and the need for social distancing led to record numbers of virtual events, conferences, and online classes, which further increased people’s use of digital screens.

There has been much debate about how the blue light from screens may affect human health. Currently, there have been no firm conclusions about how blue light may affect a person’s eye health in particular.

The American Academy of Ophthalmology (AAO) states that blue light-blocking glasses or products are unnecessary when using digital devices, such as computers, as causes of digital eye strain are due to lack of blinking or eye moisture.

Learn more about digital eye strain.

This article discusses what blue light screen protectors are, how effective they are, and suggests a range of products a person may wish to try if they are thinking of purchasing one.

Blue light originates from fluorescent and light-emitting diode (LED) lights that commonly feature in cell phone and computer displays. However, the most common source of blue light is from the sun.

Blue light screen protectors reportedly filter out or reduce blue light from digital screens. Therefore, a person can purchase these protectors and place them over their device screen to block blue light.

Studies into the effects of blue light on eye health have yielded mixed results. A 2017 review concluded there was a lack of quality evidence to suggest blue light-blocking lenses are beneficial to the general population.

One 2018 study has shown changes in the cornea, lens, and retina following exposure to blue light in a laboratory setting. However, this does not reflect real-life exposure to blue light.

A person could improve their sleep by using blue light screen protectors. A 2018 study explained that blue light can stimulate the brain and reduce the production of melatonin, a hormone that helps people maintain their circadian rhythm and induce sleep.

Therefore, if individuals use screens and expose themselves to blue light before they go to bed, they may find it harder to sleep.

When searching for blue light screen protectors, a person may wish to consider the following points:

  • the dimensions of the device’s screen
  • the type of device they are using, such as a phone, tablet, or computer
  • product reviews
  • feedback on independent review sites, such as the Better Business Bureau or Trustpilot

Please note that the writer of this article has not tried these products. All information presented is purely research-based.

Forito Eye Protection Blue Light Blocking & Anti Glare Screen Protector

Forito sells blue light screen protectors and ranks as a best-seller on Amazon. The brand makes screen protectors for both laptops and desktop computers and claims it is a leading screen filter manufacturer.

The Forito screen protector has a width of 13.6 inches (in) and a length of 7.6 in.

It comes with the option to purchase a filter for laptop screens ranging in sizes of 11–17.3 in or a desktop screen with sizes of 19–28 in.

Forito claims to use the newest blue light filtering technology. The company also states that its screen protectors are:

  • anti-static
  • anti-glare
  • anti-scratch
  • able to block 100% of UV-400 rays
  • able to offer radiation protection
  • available with free shipping and returns through Amazon

MOSISO Computer Blue Light Blocking Screen Protector Film

MOSISO’s screen-protecting film is compatible with desktop computer screens from brands such as Apple, Dell, and Hewlett-Packard. The width of the screen protector is 12.48 in, while the length is 19.29 in.

The MOSISO screen protector comes with the following features and capabilities:

  • maintains original screen brightness during use
  • ultra-thin design with a thickness of 0.01 in
  • suitable for office or home use
  • filters 99% of UV light
  • easy to install

A person can access free shipping and returns through Amazon.

EYES PC Blue Light Blocking Screen Protector Panel

EYES PC offers a range of different blue light screen protector panels. These products are compatible for use with laptops, desktop computers, large monitors, and television screens.

This brand sells screen protectors in sizes ranging from 11-in laptop panels to panels large enough to fit a 65-in television.

The company claims that the EYES PC blue light-blocking screen can reduce blue light by 53% and digital eye strain when viewing LED screens.

EYES PC also claims that the product’s test data meets Food and Drug Administration (FDA)-accepted American National Standards Institute (ANSI) Z80.3 test standards.

A person can return EYES PC products within 30 days of purchase. They can also get a refund within this timeframe.

Individuals can also access free shipping within the United States via the company website. Free shipping and returns are also available through Amazon.

A person who wishes to reduce their exposure to blue light from computer screens, phone screens, or other devices can consider the following alternative techniques and products:

Research on whether blue light screen protectors benefit eye health is still ongoing. However, a 2018 study concluded that blue light could have harmful effects on the eyes, such as dry eye, cataracts, and age-related macular degeneration.

The Centers for Disease Control and Prevention (CDC) have stated that blue light has the strongest effect on a person’s circadian rhythm. Therefore, people may wish to avoid using screens before they sleep to minimize insomnia or waking up too early.

The length of time that an individual spends using electronic devices can also affect their eye health.

A 2020 review of multiple studies reveals that excessive exposure to blue light causes severe photochemical injury of the retina. However, this reflects exposure to high levels of blue light in a laboratory setting. In contrast, computers and digital devices provide low enough levels of blue light that they do not cause damage to the eyes.

People who use screens for long periods may wish to take measures to protect their eyes. According to the CDC, there are several ways to maintain good eye health and help prevent vision loss. Individuals can consider speaking with an eye doctor for regular dilated eye exams to keep on top of their eye health. People can also wear sunglasses when they are outside so that their eyes have some protection from the sun’s blue light.

Besides blue light exposure, diabetes can also cause vision problems, as high blood sugar levels can lead to damaged blood vessels inside the eye or swelling in the lens.

To avoid vision loss from diabetes, individuals can consider taking precautions to avoid developing diabetes, or managing diabetes if they already have the condition.

Smoking may also increase the risk of vision problems, such as cataracts and age-related macular degeneration.

Learn more about blue light and vision health.

There are many different blue light screen protectors a person can purchase online.

Research into the efficacy of these products has not reached a definitive conclusion, but some studies suggest that blue light can be harmful to eye health.

Using screen protectors that decrease blue light exposure may offer some peace of mind to those who cannot reasonably reduce their time looking at digital screens every day.

A person considering buying a blue light screen protector can explore relevant research in order to assess the benefits and risks of blue light screen protectors.

People can also take other steps to look after their eye health, such as having regular eye tests with an eye doctor.