The article was professionally consulted by an eye doctor - Department of Examination & Internal Medicine - Vinmec Hai Phong International General Hospital
Light has many different colors, and their effects on the eyes are not the same. So how does the color of light affect the eyes, and which color will be best for the eyes?
Light consists of two parts, visible light and invisible light. For visible light, the human eye can see light with wavelengths in the range 380 - 760 nm, below 380 nm is the ultraviolet spectrum, above 760 nm is in the infrared spectrum, and these two spectrums belong to the spectrum. the part of light that humans cannot see. Every day the human eye is exposed to many different colors of light. Each color has a different wavelength. The "color" that the human eye sees and describes is essentially a collection of many light waves with different wavelengths, and to some extent examples can be given such as blue as Light waves have short wavelengths, red is light waves with long wavelengths. Each color of light has a different effect on the human eye, which requires different care.
2. Special light colors
Blue light is a particularly beneficial part of the light beam, helping to initiate and regulate human circadian rhythms. Thanks to circadian rhythms, humans naturally know to wake up at dawn (blue light stimulates the body to start), and go to sleep when it is dark (no longer stimulated by blue light). Blue light therapy also helps in the treatment of seasonal affective disorder (SAD), a type of depression caused by a lack of natural daylight, and can be equally effective. with the use of an antidepressant. However, natural blue light is the main and beneficial source of blue light for humans, and if overexposure to blue light emitted by screens of electronic devices as well as Artificial objects (such as screens of smartphones, tablets, laptops, LED lights, fluorescent bulbs, etc.) will harm eyes and sleep, because if it's daytime, Blue light helps to increase emotions and concentration, in the evening blue light will disrupt the circadian rhythm, the body does not recognize the time of waking - sleeping, leading to not secreting enough melatonin , affecting memory, emotions as well as regulating hormonal balance.
Disrupted melatonin production due to overexposure to blue light can cause more serious problems besides insomnia, including high blood pressure, diabetes, migraine headaches, and more. A good way to reduce harmful exposure to blue light is to reduce the amount of time you spend using devices and devices that produce blue light such as computer screens, phones, etc. If this is not possible for the sake of the job, try using computer blue light filters. Also, consider replacing white fluorescent and white LED bulbs with warm white, halogen or incandescent lights. It is still best to limit the use of phones, tablets, laptops, ... before bedtime.
Other colors that can affect the human eye are green and yellow. Green can also help regulate circadian rhythms. Overexposure to green light at night is similar to overexposure to blue light, disrupting circadian rhythms. Yellow light has been shown to be effective in protecting the retinas of patients with overexposure to blue light because it produces the best contrast. Sunglasses with yellow lenses are quite effective not only at filtering ultraviolet rays but also blue light.
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Articles refer to sources: aao.org and eastwesteye.com
Studies have shown that warm white or soft white lights in the 2700K-3000K (Kelvin) range can help reduce eye strain and improve sleep quality, making them the perfect choice for cozy reading nooks and bedroom study sessions.
Yellow light has been shown to be effective in protecting the retinas of patients with overexposure to blue light because it produces the best contrast. Sunglasses with yellow lenses are quite effective not only at filtering ultraviolet rays but also blue light.
Some wavelengths are easier for the human eye to recognize. And some others are not. In daylight, green is the most visible color from a distance for human eyes.In the darkness, however, yellow is the easiest color to recognize.
For your eye health, the best kinds of lighting to live and work with include warm light sources, such as natural light. Your windows can filter and block the UV light from the sun and allow natural warm light in during the day. This is good for your eyes.
Long wavelengths equal less energy and shorter wavelengths equal more energy. Blue-violet light waves are actually the shortest light waves, carry the most energy and thus damage our eyes and skin more than other light.
Yellow light, has been proven effective in protecting the retinas of patients exposed to excessive blue light, since it offers the best contrast. Sunglasses with yellow lenses can be very effective in filtering out not only UV but blue light too.
As with any type of light, it is important to be mindful of exposure and take steps to protect your eyes from excessive exposure to bright light, such as wearing sunglasses or reducing screen time. Ultimately, the idea that green light is inherently harmful to the eyes appears to be a myth..
It's no secret that green leafy vegetables have many health benefits to offer–but did you know they're particularly good for your eyes? Green veggies are excellent sources of lutein and zeaxanthin, potent antioxidants that help with vision.
Refresh your “circadian eye” with a burst of orange light. Light is a powerful wake-up call, enhancing alertness and activity. Its effect is controlled by a group of photoreceptor cells in the eyeball that make the light-sensing pigment melanopsin.
Warm white or soft white lights in the 2700K-3000K range can help you relax and get a good night's sleep, while cool white lights in the 5000K-6500K range can boost your productivity and focus.
These researchers found that this exposure to Red Light Therapy led to a 17-20% improvement in visual acuity. How Is This Possible? Eyesight declines after the age of 40 due to a 70% reduction in ATP (adenosine triphosphate) which means that the cells lack the energy to function properly.
Red light. Red light is by far the best calming light color for sleep. Choosing a red light as a nightlight ensures that you don't disrupt your circadian rhythm. So switching to a red light a few hours before going to bed will surely help you fall asleep easier.
Use dim red lights for night lights. Red light is less likely to shift circadian rhythm and suppress melatonin. Avoid looking at bright screens beginning two to three hours before bed.
Brown or amber. Darker tints, like brown or amber, are common and work well for everyday use, REI reported. Brown offers a multitude of benefits that make it such a popular color. It helps protect your eyes by cutting through glare and preventing eye strain.
While lighter-colored eyes may be more sensitive to sunlight, they are not necessarily more sensitive to vision. In fact, blue eyes have better visual acuity than brown eyes. This means that blue-eyed people can see small details more clearly.
Whenever possible, use indirect lighting sources (e.g. floor lamps or wall sconces). Glare results from sunlight or other sources of light shining directly into your eyes and can cause discomfort. Use the suggestions below to reduce glare. Sit perpendicular and a few feet away from windows.
Introduction: My name is Stevie Stamm, I am a colorful, sparkling, splendid, vast, open, hilarious, tender person who loves writing and wants to share my knowledge and understanding with you.
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