How does technology affect the eyes?

You spent most of the day looking at your computer screen, even darkening the tablet or smartphone turn. How will these digital screens hurt your eyes ? The answer will be in the article below, invite readers to follow.

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Digital screens of computers, smartphones and tablets will cause a lot of trouble for you, from eye pain, blurred vision to headache. All of these effects are listed by physicians in a group called "computer vision syndrome (CVS)" . There are many causes of CVS, from misusing reading glasses to too bright screens. But most symptoms come from two original problems, one is that your eyes have been dried and the other is too tired.

"There are small muscles inside your eyeballs, they change the shape of the lens of the eye to put things you're looking at , " said Dr. Joshua Dunaief, University of Pennsylvania. After hours of sitting in front of a computer screen, these muscles will be tired of having to focus on a single fixed point. "When the muscles are tired, your eyes will no longer have the ability to concentrate." Dunaief also said research shows that people who read books or work online often blink less. This results in dry eyes, watery eyes or burning sensation.

These problems may disappear within a few hours if you stop looking at the computer screen. However, there are potential dangers if you work for a long time with a digital screen. " There is evidence that too bright light will damage your retina, to an irreversible level . Staring at a high-brightness computer screen that could harm the eyes , " Dunaief said. know.

Sitting too close to the computer screen (or holding a smartphone too close to the face) can cause some vision problems, said Dr. Joan Portello, New York University of Optonmetry . "A lot of people don't realize this, but your eyes will have to work harder when you observe something too close."

So what do we need to do to protect eyesight? First and foremost, you must use the right type of glass."You should not use reading glasses to use computers." You should leave your computer, smartphone, tablet screen at medium brightness and at a distance to make your eyes more comfortable to observe. Increasing the font size, closing the curtains and reducing the brightness of the lights in the office to prevent glare helps you to keep your eyes healthy.

Water drops or artificial tears also help a lot for people with dry eyes. Also, you should stick with the 20-20-20 rule . "After 20 minutes of use, take your eyes off the computer screen and observe something at a distance of 20 meters for 20 seconds . " This helps your eye muscles to rest, avoid fatigue and stress. You should focus on one point as far as possible, and while looking away, try blinking several times to keep your eyes from drying out.

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