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What Causes Digital Eye Strain?Digital eye strain is not caused by one isolated event or behavior. Irritation and discomfort can be the result of many issues. Digital devices often feature small print and pixelated images that can be difficult to read and cause our eyes to strain in order to focus. We may also be using the devices improperly by holding them at the wrong angle or too far from our eyes. Blue light, also referred to as high-energy visible (HEV) light, is another cause of digital eye strain. It is emitted by digital devices and increases eye strain more so than other colors that have a longer wavelength. Digital eye strain can also be exacerbated in adults who wear prescription eyewear. This is because the corrective lenses they wear are oftentimes not intended for viewing the mid-distance range of computers and electronics.
Blue Light Exposure Additionally, the optical industry is paying close attention to the issue of blue light exposure, also referred to
as high-energy visible, or HEV, light exposure. Because blue light can reach deeper into the eye than ultraviolet light, it may damage the retina. Although the issue is recent, emerging research points to a possible link between exposure to blue light and long-term vision issues such as age-related macular degeneration (AMD) and cataracts. As more people from all age groups spend added time in front of digital screens, new lens technologies are enhancing the experience while preventing eye strain. During a comprehensive annual eye exam, an eye care provider can evaluate any symptoms of digital eye strain, as well as discuss lens options or lifestyle changes for alleviating and protecting against future discomfort. To raise awareness of the issue of digital eye strain and what is available to alleviate its symptoms. What is Blue Light? As we now live in the digital era, the issue of high-energy visible (HEV) light wavelengths emitted from backlit displays is of concern to eye care providers, specifically the impact of overexposure to blue light on long-term vision health. Light that appears white can have a large blue light component, exposing the eye to hidden spikes in intensity at wavelengths within the blue portion of the spectrum. These wavelengths range from 380 to 500 nanometers (nm). The band of blue-violet light considered potentially most harmful to retinal cells ranges from 415 to 455 nm. Some of the most favored digital devices and modern lighting — such as light-emitting diode (LED) lights and compact fluorescent lamps (CFLs) that have replaced most incandescent lights — can emit a high level of blue light, typically in the wavelength starting at 400 nm. Over time, eyes are exposed to various sources of blue light. Emerging research suggests that this cumulative and constant exposure to blue light can damage retinal cells. This slow degradation could lead to long-term vision problems such as age-related macular degeneration (AMD) and cataracts. The retina, which is responsible for processing intensity of light and color, cannot regenerate or be replaced if damaged. Once damage has occurred, the eyes are left increasingly exposed to blue light and other harmful environment factors, increasing the risk for long-term visual impairment. While high levels of blue light might be detrimental to eye comfort, it is also has benefit s, including helping to establish the natural circadian rhythms in the human body and aiding cognitive functions such as alertness, memory and emotion regulation. While blue light is unavoidable, it is important to understand how it impacts eyes and bodies and to know tools and tips for limiting exposure when necessary. Use Devices Responsibly • When using handheld devices, make sure to keep them at a safe distance, just below eye level. • Take a 20-20-20 break: Every 20 minutes, take a 20-second break and look at something 20 feet away. • Remind yourself to blink more often. Staring at a digital screen can affect the number of times you blink, causing eyes to dry. • Frequently dust and wipe digital screens to help reduce glare. • Increase text size to better define the content on the screen. Use the settings control to make adjustments that feel comfortable to your eyes. Adjust Your Workstation Lighting. It is important for consumers to be proactive about their vision health and to monitor if constant exposure to digital devices is impacting their eyes. While many individuals may be experiencing symptoms, they may not know there are products such as computer eyewear that can ease digital eye strain. This text aims to elevate the issue of digital eye strain and highlight recommendations from the optical industry and eye care providers about this preventable health issue. Practicing good eye health and proper eye care are key to preserving your vision. Having a comprehensive annual eye exam is the most important thing you can do to prevent or treat symptoms of digital eye strain. During an exam, an eye care provider can take a closer look at the health of your eyes and vision and determine a plan to address personal vision needs based on your lifestyle and digital device use. Regular eye exams are a part of healthy vision maintenance and should be considered for both adults and children. Preventative eye care can help preserve vision and can help identify vision and other health issues early on in disease progression ensuring lifelong vision health. If you have digital eye strain, your eye care provider has technology designed to help you alleviate and prevent it in the future. By taking action, individuals can enhance their vision in everyday life when using digital devices |
Wider ScopeDigital devices permeate every aspect of our lives. An annual survey of digital device use, 69 percent of adults use a smartphone on a daily basis — compared with 45 percent three years ago. And 42.5 percent use a tablet or e-reader, compared with 26 percent in 2012. From the moment people get up until the time they go to bed again -- including when they are eating, exercising and reading — they are using their smartphones, tablets, computers, laptops and other electronic devices. The use of such technology has increased each year since The first conducted a survey on the topic in 2012. Survey results, nearly three in 10 adults (29.8 percent) are high users, spending more than nine hours each day using digital devices. Digital devices allow people to live in the present — connecting with others, sharing information and capturing memories. Yet many users fail to notice how the hours spent with this technology can affect vision health, both immediately and over a lifetime. Eyes are one of the most vital organs and a window into the bigger picture of what is going on inside the bodies. Even so, many people neglect to care for their eyes when it comes to digital devices, which can have unintended health consequences. More than 90 percent of adults report using digital devices more than two hours a day, putting them at risk for digital eye strain. Our options are limitless, often including more than one device at a time from televisions, smartphones, computers, tablets or e-readers and video game consoles. When face-to-face with computers, screens sit about two feet from our eyes and people tend to stare at them for prolonged periods, which decreases blinking. Blinking is important to prevent dryness or irritation in eyes. In addition, many of workspaces are not “eye-gonomically” designed to prevent digital eye strain. For smaller digital devices, they tend to be held 8 to12 inches from the eyes, even further fostering conditions for digital eye strain, which is characterized by dry, irritated eyes; blurred vision; eye fatigue; and head, neck and back pain. While adults with computer-oriented jobs seem to be the prime targets of overexposure to digital devices, one in four children use these devices more than three hours a day. This exposure, which occurs both at school and at play, poses a risk to children’s developing eyes. Accelerated myopia, or nearsightedness, is just one potentially troubling byproduct of too much screen time. Blue Light WarningsMany parents aren’t heeding the warnings from medical professionals on the need to monitor digital device
use among kids. One in four children uses digital devices for more than three hours a day. In fact, 15 percent of survey respondents report they don’t limit their children’s screen time at all. And while 22 percent of parents say they are very concerned about the potentially harmful impact of digital devices on developing eyes, 30 percent report not being concerned at all about this issue. Digital devices are an easy — and often welcome — way for parents to distract their children, but it’s important for adults to limit overexposure. Although limiting screen time is the best way to reduce or prevent digital eye strain, parents can also follow these tips to help their children develop good habits while using digital devices: • Consider investing in computer eyewear for your child to prevent digital eye strain and to block blue light exposure. • Encourage children to take breaks when using digital devices. • Make sure children don’t put the screen too close to their eyes, especially for long periods of time. • If a child is doing schoolwork on a computer, set up the workspace properly. This includes having a chair that encourages correct posture, with both feet flat on the floor. ======================================================= Lens Options • Single Vision Lenses – function at an individual’s computer working distance • High Fitting Bifocals – provide a large diameter bifocal section at the bottom and middle of the lens specifically for the face-to-computer distance; above the bifocal section, the lens is built to view objects that are far away • Occupational Lenses – offer appropriate computer screen viewing assistance at the top of the lens; the bottom of the lens is for reading • Progressive Lenses – developed as a solution for everyday vision needs, near, intermediate and far; prescribed for adults with limited computer use • Computer Progressive Lenses – designed to provide large, distortion-free viewing areas for computer distance and up-close objects; recommended for computer use, reading and limited distance viewing Lens Treatments and Filters • Anti-Reflective Lenses – reduces reflection and glare from indoor and outdoor lighting sources • Amber/Yellow Filters – absorb glare and filter out harmful blue and violet light that is emitted by many digital devices Computer eyewear is available through eye care provider practices as well as at selected retailers. It is recommended to consult an eye care provider when considering the best options for your lifestyle and vision needs. ======================================================= Exercise for your eyes. To reduce your risk of tiring your eyes by constantly focusing on your screen, look away from your computer at least every 20 minutes and gaze at a distant object (at least 20 feet away) for at least 20 seconds. The "20-20-20 rule." Looking far away relaxes the focusing muscle inside the eye to reduce fatigue. Another exercise is to look far away at an object for 10-15 seconds, then gaze at something up close for 10-15 seconds. Then look back at the distant object. Do this a few times. Reduces the risk of your eyes' focusing ability to "lock up" (a condition called accommodative spasm) Remember to blink frequently during the exercises to reduce your risk of computer-related dry eye. |
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Blue Light Emissions
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size 18.5cm / 7.3inch Allow + Glass eye beads, weight 8 grams
18.5cm//7.3inch18.5cm//7.3inch
ALL ABOUT VISION FOR YOUR PRESENT AND FUTURE NEED. NEW MATERIAL IS CONSTANTLY ADDED. THANKS FOR BEING HERE.
size 18.5cm / 7.3inch Allow + Glass eye beads, weight 8 grams
18.5cm//7.3inch18.5cm//7.3inch
