The child said he changed his glasses when he could not see clearly? Maybe it's too late!

Children are in the growth and development period, the interpupillary distance will change accordingly, and the myopia is also developing, so the lens needs to be adjusted in time. On the other hand, children have strong mobility and the lenses are easy to wear. Long-term use of blurred lenses can cause eye fatigue, and in severe cases, it may aggravate myopia. "Timely replacement of glasses is very necessary for myopic children. Do not wait until the lenses are severely worn or the child says that the glasses can't see clearly before changing glasses.

Many parents believe that "anti-blue eyes can prevent myopia." Blue light mainly comes from sunlight, and other sources are fluorescent lights, LED electronic screens and other equipment. Blue light is not all harmful, only short-wave blue light will have an impact on eye health, and it is under long-term, high-intensity, uninterrupted exposure. Children’s daily use of electronic screens has not reached the level of causing harm, and the intensity of blue light produced by electronic screens is only a few tenths or a few hundredths of natural light. When children wear anti-blue glasses for a long time, the beneficial wavelengths of blue light in nature are blocked, which can cause myopia instead. "Therefore, children should not wear anti-blue glasses, which is not only useless, but harmful."

"The main causes of myopia are looking at things too close, using the eyes indoors for a long time, and not being able to accept full-spectrum sunlight." Scientific eye care must first do three "20s", that is, looking at 20 feet every 20 minutes. (Approximately 6 meters) distant objects, rest for another 20 seconds. Secondly, the indoor lighting should be even, which means that the desk lamp and the entire room should be very bright. Third, outdoor activities are very important. School-age children are guaranteed at least 1 hour of outdoor activities a day, and it is best to achieve more than 2 hours a day on holidays. On average, the total duration of outdoor activities per week reaches 10 to 14 hours.