Weakness of ICT

I want to add the weakness of ICT that I have discussed in last meeting in ICT 2. The weakness of ICT for me, Physically, I can not stay too long in front of my laptop because it irritates my eyes commonly and also I feel hurt on my back. According to the experts about the effects or the weakness of using a computer / ICT : 1.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. 2.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. 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. 3. 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,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. 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. I think that all about the weakness of ICT for me and According to the experts’ Thank you.