If one is Left-handed, but made to be Right, does that complicate this condition? My only child is Left handed, my brother is, and I was the 1st born in a large family- in the early 50's. thank goodness for spell check right click...
The core issue with dyslexia is not in writing the letters or in the mechanics of writing (although dyslexics can have problems with written expression). Dyslexia is a difficulty in processing the underlying phonological (sound) components of our language. In other words, children with dyslexia have a difficult time hearing the sounds in words and then learning the letters (and letter combinations) that correspond to those sounds.
I am not familiar with the literature on dyslexia relative to left-handed people being forced to use their non-dominant hand for writing and how that affected learning to decode. There is mention of the left-handed issue on Wikipedia, but there is no citation.
I believe that it is now passe and educators are no longer forcing children to change hands. I would think that it would complicate how easily one learned to write the letters of the alphabet. Being right-handed, I’ve had no experience with that. I am sorry that I could not be more helpful on this topic.