Many children are diagnosed with learning or behavioral disabilities when in reality, that isn't the problem at all. He or she might be one of many kids who have a hard-to-detect condition that effects learning. It's known as Convergence Insufficiency (CI).
To explain, CI is a condition that impacts your capability to see things at close distances. This means, a person with CI would struggle with reading, writing and working on things, even when it's a book or activity right in front of them. Someone suffering from CI struggles to, or is simply not able to coordinate his or her eyes at close range, which impairs things like reading. And because they want to avoid double vision, schoolchildren try harder to make their eyes turn back in (converge). All this added effort will often give way to an astounding amount of frustrating side effects including eyestrain, headaches, blurred vision, double vision, fatigue and decreased concentration, and reduced comprehension even after brief periods of reading.
You may have also noticed that your son or daughter frequently loses the place when reading, tends to shut one eye to better see, has a hard time remembering what was read, or reports that words seem to be moving. Another issue that often comes up is motion sickness.
CI is often misdiagnosed as ADD or ADHD, dyslexia, or an anxiety disorder. Additionally, this vision condition is often unable to be picked up when a child gets a simple eye exam using only an eye chart. Anyone can have 20/20 eyesight, yet still have CI, and not have the visual skills needed for reading.
But it's important to know that CI typically responds positively to proper treatment, involving either supervised vision therapy in a clinical office with home reinforcement, or prismatic (prism) eyeglasses prescribed to decrease some of the symptoms. Unfortunately, due to considerable lack of testing for CI, a lot of sufferers are not getting the treatment they need early in life. So if you've observed that your child shows signs of having a hard time with any of the issues mentioned above, make an appointment with your optometrist to discuss having your child tested for CI.