Visual processing disorders can interrupt an individual’s ability to understand and navigate written symbols, which may cause problems with math/maths and learning to read at school. They’re not due to vision problems or any issues with the eyes, but rather with how the brain interprets visual information.
On the other hand, dyslexia is a separate condition that often makes it challenging to break spoken language down into its component parts. This in turn complicates reading and spelling. While the two conditions can look similar, they have different causes and thus children and adults who have one and not the other will require a different set of strategies and accommodations.
You may also encounter the term visual dyslexia, which refers to individuals who have a type of dyslexia that is not related to phonological processing – learn more about the different kinds of dyslexia. In visual dyslexia, a child experiences a type of visual processing disorder. He or she may be prone to reversing or transposing letters, have difficulty locating words on the page, and have a tendency to skip over them. In comparison to phonological dyslexia, rhyming ability and language recall are less likely to be affected.