Electronic devices emit high level of energy, short wavelength blue and violet lights, can cause potential health risks specially Computer Vision Syndrome and premature aging of the eyes
In the light of modern technology, ubiquitous, unhindered use of computers and electronic gadgets has become the necessity of offices, educational institutions and business organizations and its use appears to be inevitable. We have observed in our daily practice that every 3rd child attending the eye clinic complains of eye strains leading to blurring, double vision, headache, neck pain, back ache, itchy and tired eyes.
Parents are more worried about their children. Who are accustomed to get engaged in watching TV, playing computer games and mobile phones. They never listen to the parents so much so that they do not take their meals in times. Take less interest in their studies as well as the outdoor games; as a result they are gaining weight. Since they spend lot of time in front of the computer screen. They are increasingly complaining of eye strain and discomfort.
Electronic devices emit high energy, short wavelength blue and violet lights. The blue light is very close to weak ultra-violet light (UV). Therefore there is a danger of cumulative visual symptoms over the life-time exposure. Causing premature aging of the eyes with every likelihood of producing cataract and macular degeneration (loss of central vision to read smaller prints) at an early or adult age. (as researched by the American Optometric Association)..
Computer Vision Syndrome: in younger people, the eyes have a stronger accommodative power to focus the objects/light on the retina; hence this neural layer is vulnerable to damage in the long run. Though the current safety limits on cell phones radiation are protective. And within safety limits as observed in 2G and 3G frequencies commonly used in cell phones. But 4G and 5G have different frequencies and modulation. According to US National Toxicology Program (NTP), which is a part of the National Institute of Environmental Health Services, cell phones emit lower level of radiation in the acceptable range. However frequent exposure against the skin can alter the brain cell activity as observed by their scientists.
The NPT researchers, in a study have subjected the rats to highest level of radio frequency cell phone radiation. Developed a rare type of tumor in nerve tissue near the heart in 6% of the cases (only). But the chief of American Cancer Society, though, negates such observation. But the intriguing part of the epidemiological study, as observed by a senior scientist of NPT is that similar tumors were seen in heavy duty cell phone users.
Computer usage demands fine motor skills from young eyes which are still not well developed; it puts children at a greater risk of Computer Vision Syndrome than adults’ developed eyes.
Hence we need to realize to take preventive measures to limit the children from exposure to blue light from these devices. The good news is that the user gets better if we give them a repeated short breaks after very 20-25 minutes. And the office people, preferably they can use coated/photo-
chromatic lens in the glasses which may thwart the harmful rays to certain extent. Especially for those who are engaged in such jobs which entails long hours over the screen. They should limit its use and stop using computers/smart phones after office hours or when they are at home. Unless it is absolutely necessary.
In fact, we do not want to deprive our children from modern technology like using computers/watching TV. We need to realize the damaging eﬀects of harmful rays by constant pouring over the screen that leads to Computer Vision Syndrome. The best course for the children is to watch the TV for half an hour daily. Or with repeated breaks if watching a sports program, preferably on Sundays only