75-90% of classroom learning involves the vision system. If the vision system is not working properly, learning can be hindered, as can success in sports and other activities, along with self esteem and behavior. Vision problems often go undetected. There are other factors in vision besides seeing 20/20.
Clear vision is one thing. Other symptoms of vision problems include trouble keeping one’s place when reading, disinterest in reading, poor comprehension, fatigue with close work, and many more. If your child is struggling, vision issues may be playing a part.