Why you should take EXYRA care of your eyes28 Jan 2019
By Tim Michael
In today’s modern digital world, most of us spend the bulk of their days staring at a screen for work, play, and social activity.
The increase in screen time has resulted in more people suffering from digital headaches – a type of headache associated with the eyes burning and tired eyes.
Those of us who work in front of a computer most of the day is at a heightened risk of a special type of headaches caused by eye strain.
Eye strain is also known as asthenopia and commonly caused by extended computer use, straining to see objects in dim light, and exposure to high glare. Localized pain in the eyes and headaches are caused when the eyes are overused or due to prolonged exposure to bright light.
Not only can eye strain cause headaches, but it can also cause fatigue in the eyes, neck and back pain, a burning or stinging sensation in the eyes, and difficulty focusing.
Interrupted sleep patterns
And all artificial light, including LEDs, fluorescent bulbs and incandescent bulbs, can interrupt normal sleep patterns.
The body's biological clock works in repetitions that are set by the amount of light and dark the body is exposed to.
Referred to as one’s circadian rhythm, this internal clock controls the timing of many physiological processes, including sleep and feeding patterns, brain activity, hormone production and cell regeneration.
Similar in appearance to ultraviolet light and visible on the light spectrum, blue light comprises of wavelengths that range from 400nm to 500nm.
Found in an array of digital devices, the proliferation of electronics with screens, as well as energy-efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.
How you can block harmful blue light
According to a study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism, the hypothalamus area of the brain is responsible for regulating sleep patterns and creating the sedative hormone, melatonin.
When artificial blue light is received by the retina during times usually associated with rest, the body's natural circadian rhythm becomes confused and unable to distinguish between night and day.
In conducted trials, the study found that exposure to blue light supressed melatonin production by almost 85% and instead boosted alpha brainwaves associated with alertness and concentration.
Prolonged exposure to blue light is also shown to have an adverse effect on overall health, including eye strain, blurred vision, fatigue, neck pain, depression and headaches.
In fact, an article by Harvard Medical School suggests that a shift in one’s circadian rhythm can increase blood sugar levels while decreasing production of hunger hormone, leptin. As a result, a correlation between evening blue light exposure and some types of cancer, diabetes, heart disease, and obesity, is hypothesised.
EXYRA’s innovative lens technology is designed to reflect harmful blue light. The special lenses are made using a photochromic dye that absorbs and blocks blue light from entering the retina (watch video here).
Maintaining true colour perception, EXYRA’s scratch-resistant lenses offer UV A/B protection while also reducing glare. Hypoallergenic and made from renewable materials, EXYRA frames are constructed using durable acetate allowing each style to feel lightweight and unobtrusive when worn.
Each EXYRA style in the range is inspired by Australian culture and celebrates a person, place, film or language from the land down under.
Assembled in Brisbane and available globally in prescription (single vision lenses only) and non-prescription styles, EXYRA glasses retail from $98 and are available online at: www.exyra.com.au