コンピューター視覚症候群に気を付けようー② [多機能端末]
①からの続き
バサン医師の勧める20-20-20の法則とは?
「２０分毎に(パソコン画面から)目を離して２０秒間、２０フィート(約６メートル)離れたところにある物を見つめること」
こうすることによって、目の状態をリフレッシュさせ、コンピューター視覚症候群になる危険性を減らすことが出来る。デスクトップパソコンの利用者はモニターを腕の長さぐらいの距離にまで目から離して、目の高さになるようにして使うこと。下向きで画面を見ることは目に易しいのだとバサン医師は話している。
魚油を塗ったタブレットを使い、眼の涙液産生をもっと自然に刺激するようにすることを勧めている医師もいる。
眼精疲労を減らしてくれるコンピューターグラスもある。例えば、Gunnar Optiksは眼精疲労を減らし、眼に多くの潤いを与え、まばたきの問題を防ぐことによって、コンピューター視覚症候群を防ぐように設計されている。
最後にバサン医師は、今回発売される新型のiPadは画面にretina displayを採用し、解像度が2048×1536と超高画質になっているため、コンピューター視覚症候群は幾分阻止出来るかもしれないと話している。」
※現在、地上デジタル放送フルハイビジョンの解像度は1920×1080だから、iPad retina displayの解像度はこれを上回っていることになる。
★新型iPadは果たしてコンピューター視覚症候群防止に一役買うことが出来るのか、発売が待ち望まれる。 (新型iPad、日本での発売は３月１６日)
★デジタル機器依存症候群の方は、20-20-20の法則に従い、画面から目を適切な距離まで離し、適度に休息を取るようにしましょう。
目の健康のため、画面の見過ぎは注意しましょう。
Experts: iPad, computer screens may cause computer vision syndrome
(CBS News) Ever since Apple announced the third generation model for their popular tablet, everyone's talking iPad. But, not everyone's going gaga over the new devices, especially eye doctors.
iPads, much like any computer or smartphone screen you stare at for awhile, might contribute to "computer vision syndrome," a set of eye problems caused by staring at a screen for long periods of time without taking a break.
Complete coverage: Apple iPad announcement
Apple announces new iPad: better display, no new name
According to the American Optometric Association, symptoms of computer vision syndrome include eyestrain, headaches, blurred vision and dry eyes. Any many of us may already have the syndrome and not even realize it.
People who spend two or more continuous hours in front of a computer or digital media each day are most at risk for computer vision syndrome, according to Wake Forest Family Eyecare.
"Who isn't sitting in front of a computer these days?" Dr. Justin Bazan, an optometrist in New York who serves on Better Vision Institute, told HealthPop. Bazan says human eyes are made for hunting and gathering and seeing at long distances, not sitting in front of a screen for hours on end.
The syndrome is caused by two factors, he says. Computer, tablet and smartphone screens are typically held close, which causes eye strain. Also, these screens always show pixilated images, which cause our eyes to shift in and out of focus without us even realizing it. That's weakening the eye's focusing muscles, the doctor says, causing the eyes to work hard to maintain focus. As for iPad and smartphone fans, Bazan says if the screen is small, people tend to hold it even closer to their eyes.
Dr. Matthew Gardiner an ophthalmologist at Mass Eye and Ear Infirmary in Boston, told CBS Boston last month that people forget to blink when they stare so closely at these screens, which can lead to dry eyes and irritation. Bazan agrees, saying that a normal blink rate is a few times every few seconds, but when staring at a screen, the rate drops to a few blinks per few minutes.
Given that many people are glued to their computers for work, and many are glued to their handheld devices once they leave, how does one reduce their risk for computer vision syndrome?
Bazan recommends a "20-20-20" rule, in which for every 20 minutes of screen time, people should look away for 20 seconds at something that is 20 feet away. It'll give the eyes a chance to refresh, and may reduce symptoms of computer vision syndrome. For desktop computer users, keep the monitor at arm's length and the top at eye-level, the downward gaze is easier on the eyes, Bazan says.
Some doctors recommend fish oil tablets to naturally stimulate more tear production, CBS station WCCO in Minnesota reported.
There are also computer glasses people could wear to reduce eye strain, such as Gunnar Optiks which are designed to combat the syndrome by reducing eye strain and allowing more moisture to stay in, thus prevent blinking problems.
According to WebMD, an ophthalmologist can determine whether you may need a pair of regular classes or special computer glasses.
Bazan, who is not an iPad expert, thinks Apple's announcement of a new "retina display" might stave off some of the symptoms of computer vision syndrome, since users supposedly will be less able to distinguish pixels from one another.
The American Optometric Association has more on computer vision syndrome.
(CBS News 2012/03/08)
「20-20-20の法則」でコンピューター視覚症候群を防止
バサン医師の勧める20-20-20の法則とは?
「２０分毎に(パソコン画面から)目を離して２０秒間、２０フィート(約６メートル)離れたところにある物を見つめること」
こうすることによって、目の状態をリフレッシュさせ、コンピューター視覚症候群になる危険性を減らすことが出来る。デスクトップパソコンの利用者はモニターを腕の長さぐらいの距離にまで目から離して、目の高さになるようにして使うこと。下向きで画面を見ることは目に易しいのだとバサン医師は話している。
魚油を塗ったタブレットを使い、眼の涙液産生をもっと自然に刺激するようにすることを勧めている医師もいる。
眼精疲労を減らしてくれるコンピューターグラスもある。例えば、Gunnar Optiksは眼精疲労を減らし、眼に多くの潤いを与え、まばたきの問題を防ぐことによって、コンピューター視覚症候群を防ぐように設計されている。
最後にバサン医師は、今回発売される新型のiPadは画面にretina displayを採用し、解像度が2048×1536と超高画質になっているため、コンピューター視覚症候群は幾分阻止出来るかもしれないと話している。」
※現在、地上デジタル放送フルハイビジョンの解像度は1920×1080だから、iPad retina displayの解像度はこれを上回っていることになる。
★新型iPadは果たしてコンピューター視覚症候群防止に一役買うことが出来るのか、発売が待ち望まれる。 (新型iPad、日本での発売は３月１６日)
★デジタル機器依存症候群の方は、20-20-20の法則に従い、画面から目を適切な距離まで離し、適度に休息を取るようにしましょう。
目の健康のため、画面の見過ぎは注意しましょう。
Experts: iPad, computer screens may cause computer vision syndrome
(CBS News) Ever since Apple announced the third generation model for their popular tablet, everyone's talking iPad. But, not everyone's going gaga over the new devices, especially eye doctors.
iPads, much like any computer or smartphone screen you stare at for awhile, might contribute to "computer vision syndrome," a set of eye problems caused by staring at a screen for long periods of time without taking a break.
Complete coverage: Apple iPad announcement
Apple announces new iPad: better display, no new name
According to the American Optometric Association, symptoms of computer vision syndrome include eyestrain, headaches, blurred vision and dry eyes. Any many of us may already have the syndrome and not even realize it.
People who spend two or more continuous hours in front of a computer or digital media each day are most at risk for computer vision syndrome, according to Wake Forest Family Eyecare.
"Who isn't sitting in front of a computer these days?" Dr. Justin Bazan, an optometrist in New York who serves on Better Vision Institute, told HealthPop. Bazan says human eyes are made for hunting and gathering and seeing at long distances, not sitting in front of a screen for hours on end.
The syndrome is caused by two factors, he says. Computer, tablet and smartphone screens are typically held close, which causes eye strain. Also, these screens always show pixilated images, which cause our eyes to shift in and out of focus without us even realizing it. That's weakening the eye's focusing muscles, the doctor says, causing the eyes to work hard to maintain focus. As for iPad and smartphone fans, Bazan says if the screen is small, people tend to hold it even closer to their eyes.
Dr. Matthew Gardiner an ophthalmologist at Mass Eye and Ear Infirmary in Boston, told CBS Boston last month that people forget to blink when they stare so closely at these screens, which can lead to dry eyes and irritation. Bazan agrees, saying that a normal blink rate is a few times every few seconds, but when staring at a screen, the rate drops to a few blinks per few minutes.
Given that many people are glued to their computers for work, and many are glued to their handheld devices once they leave, how does one reduce their risk for computer vision syndrome?
Bazan recommends a "20-20-20" rule, in which for every 20 minutes of screen time, people should look away for 20 seconds at something that is 20 feet away. It'll give the eyes a chance to refresh, and may reduce symptoms of computer vision syndrome. For desktop computer users, keep the monitor at arm's length and the top at eye-level, the downward gaze is easier on the eyes, Bazan says.
Some doctors recommend fish oil tablets to naturally stimulate more tear production, CBS station WCCO in Minnesota reported.
There are also computer glasses people could wear to reduce eye strain, such as Gunnar Optiks which are designed to combat the syndrome by reducing eye strain and allowing more moisture to stay in, thus prevent blinking problems.
According to WebMD, an ophthalmologist can determine whether you may need a pair of regular classes or special computer glasses.
Bazan, who is not an iPad expert, thinks Apple's announcement of a new "retina display" might stave off some of the symptoms of computer vision syndrome, since users supposedly will be less able to distinguish pixels from one another.
The American Optometric Association has more on computer vision syndrome.
(CBS News 2012/03/08)
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