I'm afraid I have to disagree with what Rachna Varia says in her video. LINK
This video shares what dyslexia is, what it's not, and what needs to be done!
“Dyslexia is a language based learning disability that impacts phonological processing in reading…”
“Phonological processing is the ability to see or hear a word, break it down to discrete sounds, and then associate each sound with letter/s that make up the word”.