Blue light is a visible light spectrum with the highest energy and shortest wavelength corresponding to ultraviolet rays. Blue light has its benefits and harmful effects. Cat eye glasses with blue light blocking technology are also quite common these days. In this blog, you will know Why Are Blue Light Glasses Beneficial to Your Vision.
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Blue light is everywhere
Blue light is the most common type of light, and we are most exposed to it when we are outside. However, there are artificial sources of blue light such as LED lighting, fluorescent lighting, and flat-screen TVs. The screens of smartphones, computers, and electronic notebooks emit a significant amount of blue light.
The amount of blue light, also known as high-energy visible light or HEV light, emitted by these devices is only a fraction of the sun. However, because we spend a lot of time using these devices, the proximity of these monitors to our eyes is a concern for many ophthalmologists and other healthcare professionals.
Blue light makes the sky look blue
High-energy short-wave light rays on the blue side of the light spectrum generally travel faster than other visible light rays when they hit water or air molecules in the atmosphere. It is this scattering of rays that gives the cloudless sky a blue appearance.
The eye is not equipped to block blue light
The structures at the front of the eye (cornea and lens) effectively prevent harmful UV rays from reaching the light-sensitive area behind the eye (retina). Only about one percent of the sun’s UV rays can reach the retina without sunglasses. When you wear sunglasses, they can block up to 100% of UV rays, protecting the eye from damage that can lead to cataracts and cancer. This is not the case with blue light. Almost everything passes through the cornea and lens and reaches the retina when exposed to blue light, leaving the eye susceptible to damage.
Blue light contributes to digital eyestrain
Due to its short wavelength, high-energy blue light scatters faster than visible light. This is due to the reason that it cannot be easily focused on. A computer, laptop, smartphone, or any other digital device emits significant amounts of blue light. This blurry light reduces contrast and can lead to digital eye strain, leading to symptoms such as tired eyes, eye pain, itching, redness, and headaches.
According to research, blue light glasses equipped with blue-light-blocking technology can dramatically increase contrast and help reduce eyestrain. Therefore, yellow lenses glasses can help you improve your comfort level when using digital devices for long periods.
How can glasses that block blue light help?
Glasses that block blue light can block up to 30% of blue light exposure. These glasses can also help increase melatonin production. Melatonin hormone is released in the brain, which helps you sleep better and faster. Therefore, the longer you wear your blue-blocking glasses, the better you protect your eyes from digital exposure, a common cause of blurred vision and headaches.
If you’re still not sure where to order your blue light blocking glasses, here are some additional benefits they have to offer:
1. They help increase the production of melatonin
As mentioned above, melatonin is a hormone responsible for regulating your body’s daily rhythm. As the sun sets, the brain releases melatonin in your body, and these levels drop when exposed to light. Artificial blue light emitted from your smartphone or computer screen interferes with this natural rise and fall of melatonin levels in your body. Blue-light-blocking glasses help your body to maintain an optimal melatonin level. This enables you to fall asleep faster and ensures that you get enough sleep.
2. They regulate the release of cortisol
Cortisol, another hormone-like melatonin, is essential for many bodily functions, such as maintaining blood pressure and blood sugar. Cortisol is also called a “stress hormone” because this hormone is released excessively when the body is going through stress or pressure situations. The level of cortisol in the body decreases gradually throughout the day after being released in the morning. Blue light glasses help control cortisol levels, as prolonged exposure to blue light is associated with fluctuations in the level of cortisol.
3. They are useful for shift workers
Research revealed that shift workers who work at night have an increased risk of disturbed and fluctuating circadian rhythms. This can increase the risk of people falling victim to various health problems such as diabetes, obesity, heart disease, cancer, and digestive disorders. Shift employment can help you reset your internal body clock and lower your chance of developing these terrible diseases by demanding you to wear blue-light-blocking eyewear.
Research suggests that wearing glasses that block blue light, even for a few nights, can be very beneficial to the eyes and relieve eye strain and headaches. Luckily, now you can get such glasses from SmartBuyGlasses with their virtual try-on feature.