Online classes, make eye contact was broken, because online learning requires an eye for looking at the computer monitor for a long period will affect health may cause blurry vision belo gland and may cause short-sight.
Learning what's online, so the eye can see. Because online learning requires the eyes to look at a computer screen for a long time. Will impact on health It may cause blur visual inconvenience. And may be so short sighted.
Learning that online cause eyesight. Because learning online to use eye computer screen for a long time to affect health by may cause a picture is not clear. And may cause myopia.