what is blue light
What Is Blue Light & Why Does It Matter
Blue light is in the visible spectrum, with short wavelengths and high energy, and is naturally present in sunlight. It helps regulate the human body's sleep cycle (circadian rhythm) and enhances alertness during the day.
Still, with today's digital life, we are exposed to another kind of blue light, artificial blue light-increasedly emitted from remote screens such as computer screens, phone screens, tablet screens, TVs, and LED lighting-disrupts the normal function of human eyes for long hours almost daily, resulting in visual discomfort and disturbing the principal biological sleep pattern since it is well known that the screens give in a way to shifting night-type signals at night.
Sources of Blue Light
Natural Sources
- Sunlight is the primary source of blue light, aiding daytime alertness and regulating a healthy circadian rhythm.
Artificial Sources
- Digital screens (phones, tablets, computers)
- LED and fluorescent lights
- Modern lighting and displays
These man-made sources emit blue light differently from the sun, often at lower intensities but continuously, especially when one feels attached to the screen.
What Happens When You Are Exposed to Blue Light?
When your eyes are exposed to extended blue light, several effects can occur:
Digital Eye Strain
Staring at screens for long periods can dry out the eyes due to reduced blinking and cause irritation, blurred vision, or headaches, collectively called digital eye strain.
Sleep Disruption
A slight suppression of melatonin occurs with evening blue light exposure, the hormone that signals to your body it is time to rest, making it harder for you to fall asleep or stay asleep.
How Do Blue Light Glasses Work?
Blue-light blocking glasses feature a lens coating that filters or blocks a portion of the blue wavelengths emitted by screens and artificial lighting.
This is what they do best:
- Reduce blue light exposure: The lenses absorb or filter a specific range of blue light, helping reduce discomfort.
- Comfort eyes: Reducing the high-energy blue wavelengths reaching the retina provides relief for many working on computer screens for hours.
- Improve sleep hygiene: Using blue-light-blocking glasses at night, especially those with the highest filtering capacity, can help maintain the natural circadian rhythm.
The degree of blue light blocked will depend on the lens type and use (day versus night). Customized lenses with a prescription for vision correction and blue-light blockage offer comfort and sharp vision in tandem.
Are Blue-Light Glasses Right for You?
Blue-light glasses may reduce eye fatigue and improve comfort when using digital devices for someone who spends a significant amount of time on them, whether for work, gaming, or study.
It is crucial to select the option you prefer from Luminance: prescription blue-light lenses, generic pairs, or a fashionable day-to-day eyeglass frame that could complement your lifestyle and screen habits.
Tips for Healthy Screen Habits
Comfortable Blue-Light Glasses can help take some strain off the eyes, alongside:
- Take breaks 20-20-20 times, focus on something else that's roughly 20 feet away for 20 seconds every 20 minutes.
- Adjusting brightness settings and ambient lighting.
- Avoiding screens at least 1 hour before bedtime
This arrangement keeps the eyes safe while storing away, while supporting better sleep and visual comfort in our screen-loving age.
Tips for Healthy Screen Habits
Comfortable Blue-Light Glasses can help take some strain off the eyes, alongside:
- Take breaks 20-20-20 times, focus on something else that's roughly 20 feet away for 20 seconds every 20 minutes.
- Adjusting brightness settings and ambient lighting.
- Avoiding screens at least 1 hour before bedtime
This arrangement keeps the eyes safe while storing away, while supporting better sleep and visual comfort in our screen-loving age.
Explore Our Blue-Light & Prescription Glasses
At Prescription Glasses, we offer an assortment of anti-blue-light and prescription eyewear that help make vision strainless, increase practical visual comfort, and make you look good. Whatever your purpose, there's a perfect set for aiding the eye in the digital era.
Have a look through our collection, and you will surely learn something interesting about how top-quality optical lenses can take you through an energetic digital day.