Since the laser level was invented, it has become an essential tool that provides an efficient way of handling various works of a surveying and construction project. Not only is it used for taking measurements – collecting information that can be implemented in planning and land management, but it’s also used in leveling – an integral part of surveying.
To crown it all, they can be used for indoor home improvement projects like floor installation, door and window installation, cabinet installation, hanging pictures, aligning and plumbing walls, etc. Little wonder, the number of people opting for this valuable piece of equipment is increasing by the day.
But the laser level is not without its shortcomings. And since eye safety is imperative in surveying and construction, the safety of laser level has often been questioned.
Can a laser level damage your eyes? If yes, how can you protect yourself from the radiation emitted by laser beams? The answers to these questions are just a few lines away.
Of course, it can!
But before I tell you how, let me ask you a few questions. How do feel when viewing the sun with your bare eyes?
You’ll develop sunburn-causing pain and discomfort in the eyes, isn’t it? Of course, you will! And this sunburn on your eyeball is capable of blinding you or blurring your vision due to the intensity of the light.
Same goes for the beam emitted by a laser level. This beam is a form of powerful light with great intensity. It is highly collimated, giving it enough power to cause severe retinal responses to a level that is even higher than staring at the sun with your bare eyes. When you stare at these laser beams, it will disrupt the integrity of your eye structure, and this could result in permanent loss of sight.
To avoid laser hazards, you need to know the harmful effects of each laser type used on various laser devices available on the market today.
For better clarity, the types of laser systems are grouped into six classes based on the severity of damage they can cause, these include:
Class 1 and 1M
This type of laser beams is found in remotes; they are enclosed in a housing and will not damage the eyes.
Class 2
This laser type is also safe and won’t damage the eyes. It is enclosed in a case, and its power ranges up to 1mW. You can use class 2 laser levels without putting on your safety glasses.
Class 2M
This laser type can damage your eyes when viewed with or without an optical instrument for a long period.
Class 3R
This type of laser power ranges up to 5mW, and it is hazardous. Staring directly into the laser beam of this type even for a few seconds can cause damage to the eye retina. Thus, you should avoid staring at the class 3R laser beam.
Class 3B
This laser type is highly injurious to the eyes. It can cause severe damages even if you view the beam directly for a period shorter than the blink reflexes, or view its beam reflection through a mirror. When using laser levels with this much power, you should be careful to avoid pointing this laser closer to the eyes.
Class 4
This is the most harmful laser beam. Not only can it damage the eyes, but can also burn the skin. Do not use devices with Class 4 laser type in construction sites as it is hazardous and dangerous.
The intensity of damage caused is based on the wavelength of the laser beam reflected or absorbed. However, the symptoms and signs of laser eye injuries include:
The eyes are the light of the body and are also the most vulnerable organ of the body when using a laser measure or a laser level.
Using laser protective glasses is one of the best ways to protect your eyes from laser damages but how do you select the right protective eyewear?
The tips below might be able to help.
Now that you know that a laser level can damage your eyes, it is high time you took your safety to heart and to follow the necessary safety precautions to prevent eye injury.
References:
https://github.com/ashleysmith82d/laserlevel/wiki/How-to-Use-a-Laser-Level-with-a-Tripod%3F
https://flipboard.com/@ashleysmith1p91/laser-level-3hct2d67y
http://www.laserlevelhub.net/top-frequent-questions-answers/
https://www.rli.com/resources/articles/classification.aspx
