How effective are blue-light glasses in protecting against mobile-computer rays?

 TDC report

 published: 23 September 2023,09:07 pm

 collected by Blue-Light Glasses

 Nowadays, even if you don't want to, you have to use  modern devices including mobile, computer, laptop for a long time of the day. This digital screen is the medium of work of most people. As this digital screen has made people's work easier, it is harming the eyes. Experts say that staring at the screen for a long time can cause major eye problems.

 Blue-light-filtering glass is designed to protect the eyes from the blue light of the screen. It is said that such glasses really protect against blue light? There is no strong evidence for this claim. And recently,  a review of 17 studies also says that these glasses probably don't play any role on reducing pressure on the eyes.

 Blue light, located at a certain wavelength of light, is scattered around us. Blue light is also emitted from the sun. In recent decades, many experts have sought to answer whether blue light is responsible for 'computer vision syndrome.'.

 Many people suffer from eye discomfort, blurred vision, headaches, etc.,  which is known as computer vision syndrome, if they stay in digital devices for a long time. But the experts could not agree that the blue light of the digital screen is responsible for this. 

 Associate Professor of Eye and vision Sciences at the University of Melbourne. Laura Downey and her colleagues found in a new review that blue-light-filtering glasses instead of traditional glasses have no significant benefit in reducing eye strain.

 Mark Rosenfeld, professor of optometry at The State University of New York College, said scientists have long been skeptical about the effectiveness of blue light-blocking glasses. Although many past studies have been small in scope, many of them have shown that such glasses do not reduce a person's eye discomfort, nor do they improve vision.

 A new review by Laura Downey and her team on the sleep connection with blue-light-filtering glasses found mixed results. Some studies have shown that users of such glasses sleep better. In many cases, the opposite results have been observed.

 Dr. According to Downey, the amount of blue light emitted from our digital devices is actually quite low. However, spending hours on these devices can lead to related problems.

 Dr. Laura Downey and other experts offer some tips to help reduce eye discomfort. 

Ophthalmologist

At  Cole Eye Institute of Cleveland Clinic Dr. When we look at a screen, we tend to blink less than normal, says Craig C. And this is one of the causes of eye pain.

 If you look at the screen for a long time,  your eyes dry out quickly. If there is regular discomfort in the eyes, the spokesperson of the American Academy of Ophthalmology and retina specialist of Midway Eye Institute suggested using eye drops three to four times a day. Raj Mature.

 'Glitter in the eyes; It feels like dust has entered the eyes-if you feel that way after using the computer, I recommend that people pour a few drops of artificial tears into their eyes before sitting in front of the computer, if necessary; said Dr. Joshua Ehrlich.

 Rest Between Work

 Optometrists often recommend following the 20-20-20 rule of thumb when it comes to eye care. The rule is: Look at an object 20 feet away for 20 seconds every 20 minutes while working. As a result of this exercise, the eye muscles relax a little, said Dr. Mature. However, according to the results of some studies, a 20-second break may not be enough in this case.

 Dimming

 Not only the computer light, but also the amount of light in the entire room, should be kept in mind. The reflection of light from other sources on the screen of the device and the intensity of the light can also cause eye discomfort, said Dr. Laura Downey. So the computer should be placed in such a way that the light coming from any other source cannot be reflected on it.

 Location is important

 Downey suggests keeping the center of the computer screen slightly lower than right at eye level. And if you feel discomfort in your eyes, you should move the computer further away from your face. Generally, the ideal distance between the head and the computer is 20 - 30 inches.

 Dr. about the phone.

 Rosenfeld says putting the phone close to the face puts more strain on the eyes. His advice is to keep the phone at least 16 inches,  away from the eyes.

 Ger's  treatment if necessary.

If you suffer from regular eye discomfort and do not get better after three-four weeks after taking the above methods, then Dr. Mature  advises, you should go to an ophthalmologist as soon as possible.

 What about sleep?

 Some smartphones automatically switch their screen to warm tones after a certain number of hours. The American Academy of Ophthalmology recommends the use of various applications such as f.lux. These apps change the color of the digital device's screen at night, which helps reduce blue light emissions.