What to know about computer eye strain？
Numerous individuals gaze at their phones, tablets, computer terminals, and televisions for extended periods of time. In fact, many modern occupations require employees to stare at screens for several hours per day. In addition, many people use digital media or television to unwind after work. Therefore, there is little visual relief.
This can fatigue the eyes, which may result in the development of vision problems. According to the American Optometric Association, the eyes experience greater strain when viewing displays than when reading printed text.
This is partially due to the fact that many displays have lower contrast than printed pages and are affected by reflection and glare. Additional factors may also contribute to computer-related ocular strain. For instance, some individuals view screens from improper distances and angles. This can result in awkward and tense postures, particularly if the individual has underlying vision problems.
Eye fatigue and strain, eye discomfort, dry, irritated, or burning eyes, blurred vision when viewing screens or looking into the distance, difficulty refocusing the eyes, sensitivity to bright lights, headaches or neck and shoulder pain, etc., are some of the most common symptoms of computer eye strain.
Exercises may aid in the prevention and treatment of computer-related eye irritation.
Exercises may aid in the prevention and treatment of computer-related eye irritation. The American Optometric Association suggests that individuals adhere to the 20-20-20 rule. Following this rule requires looking at an object 20 feet distant for 20 seconds after every 20 minutes of screen time.
In addition to the 20-20-20 rule, it may be beneficial to invest a few minutes per day on additional eye focus exercises. For instance, try steadily alternating between focusing on distant and nearby objects.
In addition, there is the figure eight. This requires observing a floor area eight feet distant. The individual should then move their eyes steadily in a figure eight pattern for 30 seconds in one direction and then 30 seconds in the opposite direction.
Some evidence suggests that these exercises may alleviate computer-related eye strain. For instance, according to one study, looking at distant objects during work breaks can substantially alleviate the symptoms of computer vision syndrome.
Some researchers have also suggested that blinking exercises may be beneficial for preventing computer-related eye strain. Some individuals may discover, for instance, that regaining a normal blinking rate when viewing screens alleviates some of their symptoms.
Other factors may aid in preventing and treating computer-related ocular strain.
One article suggests that modifying the environment could be advantageous. By regulating light intensity, pollution can be reduced. Additionally, various individuals require varying light intensities for work. For instance, individuals over the age of 50 may require twice as much light as those in their twenties.
The authors also suggest optimal workstation configurations. For example, a person's gaze should be approximately 35–40 inches (in) away from their computer screen. In addition, the screen should be approximately 5 to 6 inches below eye level.
Summary
As more and more occupations require extended periods of screen time, computer eye strain is likely to become more prevalent in the coming years.
Many individuals believe that eye exercises, such as the 20-20-20 rule, can help enhance vision or treat eye conditions. This can assist with ocular strain, specific eye conditions, and general health. And some nutrients may promote eye health. Many foods containing nutrients such as lutein, such as oily seafood, nuts, citrus fruits, and leafy green vegetables, may promote eye health.
However, if a person suspects an underlying vision issue, it is imperative that they visit an eye specialist. An eye doctor can evaluate a person's eyesight. This can help them determine the appropriate types of spectacles or corrective lenses for the individual. However, if the problem persists, you should consult a physician or vision therapist. A more significant underlying condition may be at play.
資料來源：Shannon Johnson (2020), “What to know about computer eye strain ”. Medical News Today. https://www.medicalnewstoday.com/articles/computer-eye-strain#glasses