How's your child’s eyes sight? Is it 20-20? Even if your child’s vision 20-20 that's great and they can see clearly, but how is their visual system?

“We do something here called developmental behavioral optometry, that means we are especially tuned into tracking focusing other issues that can make reading learning much more challenging for children,” said Dr. Rob Fox, an optometrist.

Second grader Jordan Ziegler may be a typical kid thinking homework isn't fun.

"I hate it because it is not fun. It's boring," Jordan said.

But his mom knew something was just not right.

"He needed some academic intervention for reading. He wasn't reading because he wasn't keeping up with other students in the class, the normal sight words," said mom Kerry Ziegler.

And her daughter had similar problems also.

"Studying her spelling words or she wasn't gaining the fluency over the years for the level we were looking for," said Ziegler.

The symptoms were classic for a behavioral vision problem.

"They need a finger even though they are little older to keep their place as they. Very distractible even though they are trying to do close work, even just getting very close to the paper," said Fox.

Even if you child has 20-20 vision, they can still have a problem focusing.

"I have worked with college level athletes that have wonderful 20-20 vision but have horrible focusing ability,” said Fox. “And what that means is when they have to look up close for more than five minutes, they may get a headache. The words may get blurry, the words may run together."

An eye doctor can test for the problem.

"We do something what's called a early learning related vision assessment or behavioral optometry examination. We measure how well the child is converging. How long can they converge and focus at near for," Fox said.

If a problem is found, behavioral therapy is recommended, once a week for up to twenty weeks. Treatment includes computer based activities, scanning exercises and games.

The average child watches about 6,300 hours of TV before entering first grade. Although the jury is out on how TV and computers affect the eyes, the bottom line we need to limit both.

"Monday through Friday we try to limit them to an hour of screen time. Be that computer or video game time and go a little more on the weekends," said Fox.

For Kerry Ziegler, the therapy has worked for both of her kids.

"Jordan's confidence level has improved greatly. Now they want to free read and enjoy doing their homework a lot more and you can see an accomplishment and pride in themselves," Kerry said.