They are spending about sex hours in school working on their tablets plus coming back home and doing homework assignment for sure this would affect their vision negatively. Dr. Justin Bazan, an optometrist in New York who serves on Better Vision Institute, says, " The syndrome is caused by two factors, 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". As for iPad and smartphone fans, Bazan says, "if the screen is small, people tend to hold it even closer to their eyes" (Jaslow.2012). Textbooks can prevent another health problem such as neck and back pain. Children especially until 12 grades are not learn to sit in the wright position and to limit their time which may cause them serious neck and back pain. The study, which was published by researchers from Harvard School of Public Health shows, that using tablets would strained muscles in the head and neck more than laptop computer do. .
According to that study, students should not spend very long time in front of tablets or any digital screen. (Woolington, 2012). Kay Coots, director of Environmental Health and Safety at the University, admit, "Whether it's an iPad, a tablet or a mobile device, the more we use those small devices, the greater chance we'll have to strain the neck, arms, shoulders, or wrists, Coots said, "It's like watching a movie with your head turned 45 degrees. Of course your neck would hurt by the end of it " (Jan, 2012). Some may argue that health problems could be reduced and people can avoid those problems and it can be fixed. For example, teachers can advise there students from time to time during the class time to pay attention to their head and neck while studying.
