4. Low academic performance in children
Since visual problems are somewhat compensated by the brain, we may live for many years with them without realizing, especially children. They do not report any difficulty to their parents, but one of the warning signs that may be useful to note is low academic performance. Not every case is explained by visual problems, but it is definitely one of the diagnoses we need to think about, especially if they are unable to take notes from a blackboard, and have difficulties focusing their visual attention.