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Since studies show that learning is 80% visual, children with untreated vision problems can really suffer when it comes to school. Most people think that good “vision” means 20/20 acuity but in reality, vision is much more complex. Your brain is actually what completes the processing of the visual world around you and visual processing disorders can be present even when there is no evidence of a so-called “vision problem”.
The American Optometric Association reports that 2 out of 5 children have a vision condition that affects learning and estimates that 10 million American children have undiagnosed and untreated vision problems. In Canada, it’s reported that one in 4 school age children have undiagnosed vision problems, many with no obvious symptoms.
A major reason for this is that when parents and teachers see issues in school, they often run to learning or behavioral issues first. In reality, difficulty in reading, understanding, focusing, paying attention and even disruptive behavior can all be symptoms of an underlying vision disorder.
There are a number of skills that we need in order to successfully see and process the outside world. These include, eye teaming (being able to use the eyes together as a team), focusing, tracking, recognition and comprehension. When these skills are delayed or insufficient, learning, reading, understanding and motor skills can all be affected. Most of these visual processing issues cannot be treated by corrective glasses or contact lenses alone. Sometimes a regime of vision therapy exercises may be prescribed to teach the brain how to properly process the information that is coming in through the eyes.
Vision therapy often involves a combination of glasses, to optimize visual acuity if needed, and therapeutic exercises designed to train eye coordination and comfortable focusing ability. Typically, there is a comprehensive in-office assessment, then half-hour in-office sessions once every 1-3 weeks. The patient is given home eye exercises to be done 15-20 minutes per day, often with help from the parent.
Vision therapy is a process that can take up to several months before improvement or goals are met. In addition, going through vision therapy does not ensure that your child will get better grades, we are simply trying to give them all the proper learning tools so they can achieve to their fullest potential.
Identifying Vision Disorders
One example of a visual processing disorder is Convergence Insufficiency (CI), a common eye coordination disorder in which the eyes have problems viewing near tasks due to convergence problems. This is when the eyes have difficulty working together and focusing as a team, resulting in eyestrain, headaches and double vision. Children with CI often report that words appear to be “moving across the page”, making reading and comprehensive impossibly difficult.
As with many vision problems, children often don’t realize that their experience is abnormal so they often don’t report the difficulties they are having. Here are some indications that your child might have a vision problem:
- Avoiding close tasks such as reading or playing certain games
- Frequent Blinking and Eye Rubbing
- Difficulty reading - losing place frequently
- Covering one eye when trying to focus
- Double vision
- Poor memory or reading comprehension
- Short attention span
- Clumsiness or poor hand-eye coordination
If your child is having difficulty in school, particularly with tasks involving reading, it is worth getting an eye and vision exam. The sooner a visual processing issue is diagnosed and treated, the greater chance your child with have to thrive and enjoy the school years.