Examining the Safety of Neon LED Signs for Eye Health: What Science Says

You can’t help but look at neon signs. They are so bright and beautiful. However, too many good things can lead to eye damage. A source of light such as the sun, CFL, or neon signs can cause damage to your eyes.
Warm white LED neon signs are safe for your eyes. They do not produce a lot of blue light and are very bright.

The remainder of this article will address topics related to this question. You will find information such as What kind of lights can be harmful to our eyes, what neon LED sign is best for us, and the effects of LED on our eyes.

What types of lights can be harmful to our eyes?

According to a study “2000 to 3500 K, and greater than 500nm range of light are safe.”

This means that visible blue light can cause damage to our eyes. However, blue light can be broken down into two groups: long-wave and short-wave.

Eye irritation can be caused by short-wave blue light, which falls between 415 nm and 455nm. A detailed study for 2018 Short-wave blue light could cause dry eyes and disruption to the sleep cycle, research.

Our eyes are not affected by longer-wave blue light, such as 455 – 495 nm. Longer wave blue light is beneficial in regulating our sleep cycle.

White LED vs. Cold LED

Warm White LED can produce around 3000 Kelvin Degrees (3000K), of temperature color. Warm white is the closest equivalent to an incandescent bulb (your old conventional light bulb). It is suitable for all home environments and provides a soft, comfortable light.

While cold white LED can produce temperatures of between 5000-6000 Kelvin Degrees (5000-6000K), Use cold-white LED in the bathroom and kitchen.

Today, the majority of LED lamps use a blue-colored LED coated in a light-producing phosphor material. The wavelength of the LED is around 470nm and does not contain any UVA, UVB, or UVC wavelengths which are dangerous.

How do our eyes perceive visible light

To help you see, all your eyes work together.

First, light passes through the cornea (the transparent front layer of the eyes). The shape of the cornea looks like a dome. It bends light to focus the eye.

The pupil lets some of the light into the eye. The pupil controls the amount of light it lets in through a slit called the iris.

Next, light passes through a lens (a transparent inner part) of the eye. To focus light onto the retina, the lens works with the cornea.

A retina is a layer of tissue that is sensitive to light at the back of your eye. Photoreceptors are special cells in the retina. Photoreceptors can trigger electrical signals by detecting light. These signals are sent through nerves to the brain by rods or cones.

These electrical signals travel to the brain via the optic nerve and the retina. The brain transforms these signals into the images that you see.

Which neon-colored LED color is the best for our eyes and retinas?

We all know that neon LEDs are the newest generation of lights. From office decors to advertising signs to celebration signs, neon LED is very popular. With a neon LED sign, almost all colors are possible.

The yellow neon LED color is the best for our eyes. Yellow neon LEDs have a longer wavelength, so your eyes won’t strain when viewing them. It is easily visible.

You should avoid overexposing your eyes to any particular color. Dimmability is an advantage of neon LED lights. This allows you to adjust the intensity to protect your eyes and reduce strain.

How can you protect your eyes against UV rays?

UV rays are found in all forms of light, from sunlight to phone screens. There are steps you can take that will reduce the damage to your eyesight from UV rays.

Have a rest for your eyes

Limiting your exposure is the easiest way to reduce overexposure to sunlight. Take frequent breaks from your screen. You can also follow the 20-20-20 rule.

You should take 20 minutes off your computer and look 20 feet from you for 20 seconds every 20 minutes. This will help to avoid eye strain. It serves as a reminder to avoid UV light exposure.

Look into computer glasses

If you spend a lot of time looking at screens, consider investing in a pair of computer glasses. Computer glasses feature yellow-colored lenses that block harmful UV radiation.

Glasses can also be purchased to match your exact working distance. This can reduce strain and eye strain while you are working.

Invest in no-glare lenses

You should consider investing in no-glare sunglasses if you work at night. Night-time has an impact on color recognition, peripheral sight, and depth perception.

However, driving at night can be safer and more comfortable with no-glare glasses. These lenses help you see better and protect your eyes against distracting reflections. It can provide relief from fatigue and eye strain.

There are also medical options that can prevent or reduce the risk of eye damage. Experts recommend vitamins C, vitamin E, zinc, and lutein supplements.

Premixed eye vitamins are 25% less likely to get eye disease.

Effect of LED on your eyes

Researchers are concerned about the long-term effects of LED light exposure. AMD (Age-Related Macular Degeneration), is a leading cause of blindness in western countries.

However, the study concluded that LED is safe for healthy individuals. Exposure to LEDs too late at night and in the morning can disrupt the sleep cycle.

The study also found that LED emissions could be dangerous for children and vulnerable populations.

The study found that children have a greater sensitivity to blue lights. Exposure to light rich in blue light can cause discomfort in older people.

Studies in the past have shown that long-term exposure to bright sunlight can cause eyesight problems. Blue light in sunlight was the cause of the problem, according to the researchers.


The following are key points to consider if you have any concerns about LED lights affecting your eyesight:

  • Be aware of the wavelengths of your LED devices. Avoid UV rays, as they can have harmful effects on your eyesight. You can use filters for your screens if you need them.
  • Use warm white LEDs or yellow-like lights that do not strain your eyesight.
  • Although LED is not harmful to our eyesight, excessive exposure can cause eye problems.

UV rays are most damaging to our eyesight, so it is important to take precautions to avoid them.

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