Why Does the 415–455nm Wavelength Range Matter for Eye Health?

In the current digital era, we stare at displays all the time—with mobile phones, tablets, laptops and portable monitors. When we spend a lot of time looking at devices, we don’t always consider how the 415–455nm blue light range affects our eyes. Ultraviolet light stands out by having the greatest amount of energy from visible light and is related to numerous problems affecting our sight.

With this article, you will know why this wavelength is significant for vision, how it affects humans and what steps to take to limit its influence—whether you are considering a portable monitor or touch screen monitor.

Learning About the 415–455nm Wavelength Range

Most of the visible light spectrum lies between 380nm (in violet) and 700nm (in red). Blue light generally covers wavelengths from 400 to 495nm, but more energy is carried by the sub-range 415 to 455nm and light in this wavelength penetrates the eye deepest.

Light falling in the 415–455nm range or HEV light, can travel straight from the cornea and lens to the retina. Exposing your skin to too much light in this range can trigger:

• Digital eye strain (DES)
• A change in the body’s normal daily rhythms
• Damage to the retina that may occur later

Eye Health Problems

1. Digital Eye Strain happens when you look at digital screens for too long.

Having your eyes fixed on a screen for long periods can make your vision blurry and cause eye dryness, headaches and neck pain—all symptoms usually called digital eye strain. Apart from the effects of poor lighting and slouching, HEV blue light acts to intensify DES by creating extra glare and decreasing how well we see a difference between dark and light.

2. Problems with Circadian Rhythm

The amount of melatonin in the body is controlled by the light around us, in order to help sleep and wake safely. The 455nm wavelength of blue light has been found to lower melatonin production. Watching screens at night delays sleep beginning and can lead to poor quality sleep. More and more, adults and children are worrying about the impact of screen time in the evening.

3. Damage to Retina Occurring from Light

Spending lots of time in HEV light wavelengths from 415–455nm may result in damage and stress to the retina. Over time such exposure may increase the risk of AMD which often results in loss of sight.

Sources of Blue Light Are Everywhere

Although the sun supplies most of our blue light, now artificial lights can be found everywhere. There are many devices which put off significant amounts of blue light.

• Smartphones
• Tablets
• LED TVs
• Laptop screens
• LED lighting
• Portable monitors

Being in front of a portable touch screen monitor regularly means you should look for models with eye care features. For this reason, eye comfort and blue light filters are often mentioned in the marketing of new gadgets.

Blue Light Filtering is used in the product.

In response to the negative effects seen at 415–455nm wavelengths, several technologies have been developed.

1. We are talking about Light Bulbs with Low Blue Light (LBL) Technology

Lower blue light emission is achieved without affecting the accuracy of colors. It allows your eyes to relax and helps you maintain sleep quality.

If you are interested in an 18 inch portable monitor, check for those with official TÜV Rheinland certification or made with specially designed low blue light technology. The device meets industry requirements for less light emitted by HEVs as a result of these certifications.

2. Flicker-Free Backlighting

Eye fatigue can also be brought on by flickering. If LBL is used along with flicker-free technology, it is easier to be comfortable while staring at screens for a long time.

3. These are special covers you put over your screen to stop Blue Light from damaging your eyes.

They are plates placed over the monitor screen that catch or stop the harmful wavelengths. Thanks to them, your home network can protect you if your current device does not have filtering of its own.

4. Software Solutions

If your computer runs Windows, you can use Night Light. You can also use Night Shift on macOS to remove some blue light. As good as software filters are, hardware ones are often more accurate.

Selecting Devices That Won’t Hurt Your Eyes

Because portable computing is becoming more popular, many users now choose secondary displays for added flexibility. Not every monitor is created equal for people who care about eye health.

Here’s a list of considerations for blue light if you’re interested in a portable monitor.

1. Dimensions and Quality

An 18 inch portable monitor is the right size for anyone who needs to work away from their desk. Having Full HD or above resolution sharpens the image and the words, so you do not have to squint.

2. There is an official certification for Low Blue Light.

Inspect that the monitor is LBL certified and ideally look for TÜV Rheinland Eye Comfort. The light in this ultraviolet spectrum is decreased.

3. You can choose from Matte or Anti-Glare Screen.

The glossy surfaces of modern screens make existing brightness worse for our eyes. They lower glare and support your eyesight during reading.

4. Touching Is Better for Your Eyes

Such a monitor makes your tasks easier but may come with the need for brighter lighting. If you are looking for a touchscreen device, select models that clearly state they help your eyes and protect you from blue light.

How to Ensure Your Eyes Stay Secure

The way a person uses their device is just as important as the type of hardware used to prevent eye damage. Following these simple tips will help you out:

1. The rule that says you should rest your eyes every 20 minutes for at least 20 seconds while looking at something 20 feet away

Twice an hour, take 20 seconds to focus on an object that’s 20 feet distant. Relaxing your eye muscles encourages vision restoration and reduces eye strain.

2. Edit Brightness and Contrast

Set your screen so that it is equally bright or dim as your surroundings. Reading becomes easier on screen when there is high contrast.

3. Toggle on Night Mode.

Setting your computer monitor to night or reading mode will protect your eyes during the evening. Many of these modes turn off blue light on their own.

4. Proper Lighting

Don’t use screens when the light is low or dim. Introduce ambient lighting to cut down on differences in light between your screen and the world around you.

5. Visiting the eye doctor every year

If you watch or work on a screen for over six hours daily, be sure to talk with an optometrist regularly.

The Future of How We View Display Displays

The need for displays that care about eye health is now known by many manufacturers. With more people working and learning from home, companies are adding innovative eye care to their goods.

Some current 18 inch portable monitor models provide adaptable color temperature, use light sensors in the room and automatically adjust the display brightness. Their goal is to lessen the danger from the 415–455nm rays, all while keeping vision clear.

Similarly, portable models are now designed to handle flickering and blue light problems to suit consumers who spend a lot of time creating or doing work with these displays.

Conclusion

Though you cannot see light in the 415-455nm range, its effects are real. As people of all ages spend more time looking at screens, it’s now more important than ever to keep your eyes safe from blue light. For any purchase, whether it’s a phone, laptop or portable display, having low blue light and eye care features is very important.

When you want an 18 inch mobile screen or touch screen, it’s important to think about more than its size and resolution. Check for labels that show the product limits blue light—it will protect your eyes during long periods of use.