In general, glasses or lenses play a crucial role in correcting vision, allowing your eyes to focus light on the retina adequately. Advancements in ophthalmological research have led to the invention of groundbreaking products, such as blue light glasses and yellow lens glasses.
However, there is a growing debate about blue light glasses and yellow lens glasses among consumers about their efficacy and limitations. In today’s article, we will differentiate between these two types of glasses and highlight their pros and cons. Read on!
What are Blue Light Glasses?
Blue light glasses are unique products that filter out blue light emitting from electronic products. Blue light is a short-wave light with a wavelength between 400 and 500 nanometers. A growing body of research evidence shows that blue light above 440 nanometers can damage human eyes.
Computers, laptops, smartphones, and tablets are a few examples of electronic gadgets that produce blue light. However, too much exposure to blue light can cause macular degeneration, a condition related to the retina. That’s why health professionals prescribe blue light glasses to mitigate the effects of harmful wavelengths.
What are Yellow Lens Glasses?
Yellow lens glasses, also known as night driving glasses, use yellow or amber tinted lenses. Some products even have an antireflective coating. These specialized glasses have a unique design that scatters and filter out blue light, leading to reduced glare.
People with night blindness use these non-prescription glasses to improve their vision. Night blindness is a condition characterized by a low vision in dark or dim lighting, making it harder for your eyes to transition from bright to dim light. Although there is a need for more research, many people say that yellow lens glasses soothe their eyes at night.
Blue Light Glasses – Benefits
A 2016 research study highlights that people have chronic exposure to harmful blue light that emits from different sources, including LEDs, organic LEDs, etc. Blue light glasses manufacturing companies claim that their products can protect eyes against blue light, allowing the wearer to reduce exposure to intense wavelengths.
A 2017 systematic review study published on NCBI states a need for more research to confirm the efficacy of blue light glasses. However, researchers argue that these glasses can reduce blue light levels, leading to decreased hazardousness.
Another study highlights that exposure to blue light emitted from smartphones and laptop screens can cause disrupted sleep and insomnia. Therefore, it is crucial to wear blue light glasses if you frequently use your smartphone, especially before bedtime.
Because poor sleep patterns can increase the risk of Parkinson’s disease, you can curb them by wearing blue light glasses. In addition, a 2019 research study confirms that blue light glasses can help treat chronic sleep disorders.
Moreover, blue light glasses reduce headaches and eye strain. At the same time, it triggers your brain to release melatonin, a hormone that leads to healthy sleep patterns by optimizing your circadian rhythm.
Blue Light Glasses – Downsides
The biggest downside of wearing blue light is increased symptoms of digital eye strain. Research shows that this type of glasses may work for some people but not for others. Researchers and ophthalmologists often advise people to avoid using smartphones before bedtime to regulate their natural sleep and wake cycle instead of using blue light glasses.
While numerous studies highlight the efficacy of these glasses in mitigating the effects of blue light, the National Library of Medicine states that these lights do not reflect the UVA and UVB radiation from computer screens.
In addition, blue light glasses have a yellow tint that increases color contrast to block blue light. If you are a graphic designer, you may find it challenging to wear or use blue light glasses because distracting colors and hinder your eyes from differentiating between colors. As a result, you may develop the risk of eye strains.
Yellow Lens Glasses – Benefits
Manufacturers claim yellow lens glasses have more depth perception and contrast. In addition, these glasses can filter out blue light, making them a unique product for a wide range of applications, including sports, hunting, shooting, gaming, leisure, etc.
Yellow or amber lenses play a crucial role in hazy light conditions, providing sharpness and contrast by absorbing ultraviolet rays. As a result, the wearer sees things brighter and clearer.
For example, when you walk at dawn, dusk, or in fog, you can use yellow lens glasses to improve your vision. Moreover, yellow lens glasses are an excellent choice for drivers, helping them decrease eyes’ fatigue and increase visual clarity.
A 2013 research study highlights that yellow lens glasses work better in the evening time and during sports activities. Furthermore, researchers conclude that they didn’t find any solid evidence about these glasses’ adverse effects on athletes’ performance.
Yellow Lens Classes – Downsides
Although yellow lens glasses can reduce blue light glare significantly, they filter out the normal light, making it challenging for people to differentiate between dark and dim light. Yellow lens glasses also decrease the amount of light, preventing your eyes from adjusting vision in dim or dark conditions.
While yellow lens glasses are beneficial for the wearer during the day, they can affect his/her visibility at night time. Most ophthalmologists say that these glasses don’t improve night vision and slow down visual reactions.
So, instead of using yellow lens glasses for nighttime driving, one should use prescription glasses with an antireflective coating to improve his/her vision. The antireflective coating enhances your vision and improves visible light in your eye.
Moreover, a 2019 research study published by JAMA Network concludes that yellow lens glasses do not improve driving performance, particularly at night. It prevents the driver from detecting pedestrians, leading to the risk of accidents.
Blue light and yellow lens glasses have become popular among users in recent years, and each type of glasses has its own pros and cons, meaning it may or may not work for you. Therefore, it is crucial to consult your ophthalmologist before you purchase or use any of these glasses. The purpose is to make an informed decision about whether you should use these glasses.