To minimise the probable danger and possibly harmful consequences of prolonged exposure to blue light, eyeglass makers have produced lenses with unique coatings or tints meant to reflect or deflect blue light. Eyestrain, eye damage, and disrupted sleep can all be alleviated by wearing blue light glasses.
What is blue light?
Only a handful of the numerous colours in the sun’s rays are visible to the naked eye. They all have different levels of intensity and wavelengths. Compared to white light, coloured light has shorter wavelengths and less power. Blue light, at the other end of the spectrum from red, has shorter wavelengths and higher energy.
Even while the sun is the primary source of blue light exposure, screens now expose people to more of it than ever before.
It’s impossible to see anything because of the deluge of blue light around you. Eye injury can be caused by UV light emitted by fluorescent lights and electronic displays. In some instances, eye physicians are concerned about the amount of blue light absorbed into the retina.
These are some of the benefits of blue light glasses.
Work and social activities are increasingly centred around spending long periods in front of a computer screen. Wearing blue light protection may help protect you from the harmful effects of too much exposure to blue light. Wearing these glasses may be beneficial to you for the following four reasons.
A better night’s rest:
Melatonin, a sleep-promoting hormone, is produced in your body two hours before you go to bed. When exposed to short wavelengths of light right before you sleep, the melatonin production decreases, making it difficult for you to sleep.
It will be more difficult to drift off to sleep quickly if you use a tablet or screen before bed. If you cannot turn off your smartphone at least an hour or two before bedtime, blue light glasses, as recommended by many sleep specialists, may help you sleep better.
It’s easier on the eyes:
You may develop eye and muscular strain if you spend all day staring at a computer screen. Working in front of a monitor all day can lead to muscular soreness, which one can reduce by making ergonomic changes to their workstation.
Using blue light can make it difficult to focus on the screen, making your eyes work harder to keep up with the content on the screen. You can lessen eye strain by using blue light glasses that filter out blue light and enhance the contrast on your screen.
Reduced frequency of migraines
Migraines can be triggered by light, mainly blue light. Blue light can intensify the discomfort of a headache, leading to migraines. Users may reduce migraine attacks by wearing special glasses that filter out blue light.
Eye illnesses are less likely to occur.
Your cornea and eye lens are excellent at protecting your retina from damaging UV rays, but they cannot block blue light. Macular degeneration, a significant cause of blindness, can be exacerbated by retinal damage. In the long term, exposure to blue light may raise your chance of obtaining macular degeneration symptoms and cataracts. The use of protective glasses may be able to assist you in preventing this from happening.
It is possible to prevent the harmful effects of blue light if you take a break from your pc, read instead of watching television and use your smartphone and laptop less frequently. Use blue light lenses as the last option.