historyWellcome Collection1896
Dyslexia was first diagnosed in 1896 and has been wrongly blamed on eyesight and low intelligence
Dyslexia is a learning difficulty in reading and spelling, rooted in trouble linking letters to units of sound rather than in eyesight or intelligence. The first recorded diagnosis came in 1896, when a doctor described a bright 14-year-old who could not learn to read. Early observers, mostly ophthalmologists, coined the term word blindness, which wrongly suggested visual distortion. Educational psychologists later showed it was distinct from intelligence. Coloured overlays and dyslexia-friendly fonts have not been shown to help spelling, though overlays may ease eye strain.
Myths about dyslexia delay support, leaving students to blame themselves or chase ineffective aids. Understanding it as a phonological processing difficulty points toward structured, sound-based teaching.
background
Dyslexia, also known as word blindness, is a learning disability that affects either reading, writing, or speaking. Different people are affected to different degrees. Problems may include difficulties in spelling words, reading quickly, writing words, "sounding out" words in the head, pronouncing words when reading aloud and understanding what one reads. Often these difficulties are first noticed at school. The difficulties are involuntary, and people with this disorder have a normal desire to learn. People with dyslexia have higher rates of attention deficit hyperactivity disorder (ADHD), developmental language disorders, and difficulties with numbers.
From Wikipedia: Dyslexia (CC BY-SA 4.0) ↗ · text CC BY-SA 4.0Wellcome Collection · CC BY 4.0
Illustrative photo · Vassilis Pavlatos, CC BY-SA 3.0, via Wikimedia Commons
