If the child seems to quickly lose interest in games, projects or activities that require using their eyes for a longer period of time, the child may have a vision problem.
Losing track of the sentence he/she was on while reading out (aloud or silently) is another sign of vision problem.
Whether they are subtle or obvious about it, if the child chooses to avoid reading, drawing, playing games or other such activities and projects that require them to focus more, it’s a sign for you.
A child may tilt his/her head to either side while looking at something in front of them. This may be a sign of a refractive error. Tilting their head to them may seem better however it's a sign of vision problem.