Renie 1-
My son had lazy eye (strabismus) surgery twice. Although he now looks like he is looking at you correctly, his brain likes to use one eye at a time.
Tons of children and even adults have undiagnosed eye issues that have nothing to do with their 'vision'. My son has 20/20 vision, it is his brain that is not able to pull the two images from his eyes together to make one 3-D image. His eyes can't seem to pull both images together (which gives people depth perception) at the same time. It would be like us seeing two of everything (double vision). His brain decides it doesn't like that, so it shuts off one eye at a time as to not have double vision. It therefore takes away his depth perception. It also causes the problems with his school work, even though mentally he is gifted. It leaves gaps between letters on a page when writing because as we look out one eye at a time, the image we see is in a slightly different place than the other eye's image. Most people can automatically pull those two images together, but in my son's case, he can't most of the time. My son is a great compensator for this, even though he doesn't realize it. He constantly says he doesn't understand his math papers at school, so the teacher will tell him to read it out loud. When he does, he immediately gets it and can whip out the page. He is changing his visual processing into an auditory process to compensate. He is completely unaware that he does that. There are tons of tests they can do at a vision therapy place that will tell you if your kid has any eye problems like tracking etc that is causing the processing speed to be slow. The vision therapist we just went to for testing says the tests he did on my son are the ones that are used in the NFL every year. They track the eyes, etc. to see how quickly they can read, to see if they stay together, etc. The NFL uses the scores from the players to know their acuity, how quickly they can pick up the ball moving with their eyes etc.

Here is what one vision website says about just ONE problem associated with vision (but there are many):

Binocular Fusion

Binocular fusion refers to the brain's ability to gather information received from each eye separately and form a single, unified image. A child's eyes must be precisely aligned or blurred or double vision, discomfort, confusion or avoidance may result.

If that occurs, the brain often subconsciously suppresses or inhibits the vision in one eye to avoid confusion. That eye may then develop poorer visual acuity (amblyopia or lazy eye).


I would google Vision therapy or start here:
http://www.covd.org/

If you look at the list of options on the left of the homepage it has a link to Vision and Learning. It is very informative. It even explains the correlation of ADHD symptoms with eye issues.
My son's teachers kept telling me my son had ADD/ADHD. He had full testing twice and he tests better than 97% on focusing ability etc. He does NOT have ADHD. Kids with vision issues have similar symptoms.

Good luck!!!