What Happens If You Look At Welding Light? (Surprising Facts & Safety Tips)

what happens if you look at welding light

Have you ever glimpsed a welding light? Certainly, yes. The glare of the welding light is so bright that it looks like a firework display. We may get captivated to look at the spark. Regardless, the bright light of a welding arc produces much radiation and heat and thus can be compared to the sun and its radiation.

You may think: Is it okay to look at the bright welding spark? Is welding light dangerous to your eyes and skin just like the sun?

Let’s find out: What happens if you look at welding light? 

Never look at welding light without protection because the bright UV and IR rays can damage your eyes. Direct exposure to welding light can burn your retina just like the sunburn and cause photokeratitis, “arc eye” or “welder’s flash”.

The light of a Welding Arc (torch) releases strong radiation over a broad range of wavelengths (from 200 nm to 1400 nm) including UV radiation, Visible light, and IR light. There is no limit of a definite minimum safe distance from the welding light. However, a distance of 50 feet is considered safe for the eyes. So, Welders must use good protection to avoid radiation, hot sparks, and sanding dust.

Read on to know what might happen if you look at the welding light.

What Happens If You Look At Welding Light

Undoubtedly, looking at welding light without proper protection is hazardous to the eyes and skin.

But the effects of welding light greatly depend on three factors; the distance from the source, the intensity of welding light, and the duration of exposure. Be careful, a few seconds of direct exposure to the welding light can cause Arce Eye.

What is Arc Eye?

Arc eye is corneal damage caused by direct exposure to UV light emitted from a welding torch, the sun, or any other source. Arc eye is also called photokeratitis in medical terms. Hence other familiar names are welder’s flash, arc flash, arc eye, and welder’s eye.

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In Arc Eye, you can feel pain, irritation, sensitivity to light, and bloodshot in one or both eyes. You must visit your doctor and follow the instructions. In some severe cases, it can lead to blurriness or blindness.

what is arc eye

What Happens If You Look into a Welding Light

Looking at the welding arc is not as simple as the fireworks because intense radiation emits during the welding process. What happens when you look at a welding spark or flash?

You shouldn’t look into a welding light if you are not using adequate protection to prevent radiation. Because the UV and IR radiation is dangerous for your eyes and can cause flash burns (retinal injury), severe eye inflammation, pain, and redness.

To protect the workers and the public from the radiation of welding light, it is best to cover the specific area in which the welding process is carried out.

what happens if you look into a welding light

What Happens If You Accidentally Look At Welding Arc

Welding is a curious job and the welders are always at risk of sunburn, heat damage, or eye injury. Hence, the reflection of a welding light is equally harmful to the eyes. What happens if you look at the welding arc accidentally?

You might hurt your eyes if you look at the welding arc or reflected radiation whether accidentally or intentionally. While welding, you must be equipped with a mask and full protection. Because a little glimpse of UV radiation can damage your eyes, face, and skin.

Welding masks or helmets, protective gloves, and clothes are a must for the welders. It is essential to protect yourself from the potential damages of radiation, high heat, hot pieces of slag, and hot sparks.

What Happens When Looking at a Welding Light From a Distance

Definitely, the heat and radiation of a welding arc are very similar to that on the surface of the sun. During a welding process, the temperature may exceed from  3,000°F to 6,000°F. But the sun is far away and its radiation comes to us after filtering through the atmosphere.

It is pretty safe to look at the welding light from a long distance of 30-50 feet. Because the radiation and the heat of the welding arc are no more harmful from such a long distance. But we suggest never looking at the bright welding light even from a long distance.

However, it is recommended to screen off the working areas to protect the others from glare and radiation during welding projects.

How Long Do You Have to Look at Welding to Get Arc Eye

The intensity of an arc eye depends on many factors such as the distance from the source of light, the nature of radiation, and the time of exposure.

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Unprotected exposure even for a few seconds can lead to an arched eye and may result in temporary or permanent blindness and skin cancer. The more you are exposed to radiation closely, the more eye damage you may have.

Hence the symptoms of arc eye will appear after 3 to 12 hours of exposure to ultraviolet rays. Be careful, never leave your eyes untreated as it may lead to cataracts and permanent blindness.

Arc Eye Symptoms and Causes

Of course, the UV radiation of a welding torch is strong enough to cause retinal injury, also known as arc eye, welder’s flash, or arc flash. It is an inflammation and swelling of the mucous membrane of the eye. Some common symptoms are:

  1. Often it starts from mild pain in the eyes and then shifts to severe pain.
  2. Redness, irritation, and tearing of the eye and on the surrounding skin.
  3. Unable to look in the light and at the sources of light.
  4. Feel like “sand in the eyes” or “sharp glass pieces in the eyes”.

Usually, the impacts of welding light don’t appear soon after exposure. It takes some time depending on the intensity of light and distance from the source. But be wary, a few seconds of direct exposure to intense UV light can lead to an Arc eye. 

Welders Flash or Arc Eye Treatment

Some possible treatments for arc eye and corneal burns may include:

  1. Dilating drops, relax the eye muscles, and ease the pain.
  2. Patching the eyes to heal the inflamed skin.
  3. Antibiotic drops to prevent infection.
  4. Avoiding light and staying in the darkroom.
  5. Oral pain killer in severe pain.

Be cautious, visit your doctor, and follow the instructions carefully. 

Effects of Welding On Eyes 

Welding is the process of joining two pieces of metal by welding them together. If you are wondering whether welding is safe for your eyes, the answer is yes. However, there are a few things to keep in mind when doing welding work:

  • While welding, direct and long-term exposure to UV and IR light can affect the eye lens and produce cataracts in the long run.
  • The visible light of welding flame is bright enough to impair the ability of the iris to restrict this brightness to enter the retina.
  • Unprotected and prolonged exposure to certain radiation can also lead to short-term blindness.

During the welding process, protection is essential not only for the eyes but for the skin too.

Effects of Welding Light on the skin

Welders and visitors should use protective helmets or masks and also wear enough protective clothes and gloves to protect their skin from radiation, sunburn, and hot spark. Few things you should check like:

  • Direct exposure to UV radiation of the welding arc can damage your skin just like sunburn.
  • Prolonged exposure to UV radiation can also cause cancer.
  • The effects of IR radiation and Visible light of the welding arc are very small on the skin.
effects of welding light on the skin

Frequently Asked Questions

How Long Does It Take to Get an Arc Eye or Welder’s Flash?

The symptoms of the “welder’s flash” or “arc eye” don’t appear at once. Usually, it takes half an hour to 12 hours to show its symptoms, depending on the nature and severity of the exposure. Irritation, severe pain, redness in the affected eye is common in Arc eye.

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What Does an Arc Eye Feel Like?

You may start feeling “arc eye” after a few hours of exposure to welding flash. Usually, you can feel eye pain, inflammation, watery eyes, bloodshot, or inability to look in the light. If you develop arc eye symptoms, immediately visit your doctor and follow the advice.

Is it Bad to Watch Welding on TV?

It is secure to watch the welding projects on TV. Though it can damage your eyes if you look at welding light directly without protection yet watching on TV, computer and tablet are quite risk-free. Because the camera is not capable of capturing, reproducing, and transferring the radiation which is the cause of eye damage. It can only capture visible light.

Can an Arc Eye or Welder’s Flash Make You Blind?

Yes, if you look at the strong radiation of welding light directly and from a short distance, it can burn your eyes and you will develop a severe type of arc eye which may lead to an extreme eye injury. Hence if the retinal burn is left untreated, it may result in blurriness, poor vision, and even blindness.

To know more about what happens if you look at welding light just check out this video.

Bottom Lines

No doubt, the UV and IV rays are quite harmful to the eyes and skin whether it radiates from the sun or a welding arc. During a welding process, it is hazardous to look at the welding light directly. Therefore, It is very important to protect yourself from UV radiation, high heat, hot sparks, and sanding dust. Otherwise, you might develop an arc eye, retinal injury, and other health issues.

Finally, never look at the bright glare of the welding light directly. So, Welders must be equipped with protective clothes, and helmets, and the working area must be screened off to prevent any potential damage.

James Randolph

Hey, James is here with you. This blog is a powerful online resource to help you get instant answers to your superstitious beliefs, facts, and the reality of myths. Knowledge is your inner guidance system, and this blog empowers you to update, refine, reorganize and enhance your communication system. If you know well you can surely discuss facts with evidence. So, stay with us and be a master of what happens around you!

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