A child finds difficulty to spell and read, otherwise his IQ is normal, interacts well with parents and friends. Vision is normal. Most probable diagnosis of this condition is?
**Core Concept**
Dyslexia is a specific learning disorder characterized by difficulties in reading, writing, and spelling in children with otherwise normal intelligence and vision. It is not caused by poor teaching, lack of education, or low intelligence.
**Why the Correct Answer is Right**
Dyslexia is a neurodevelopmental disorder that affects the brain's ability to process written language. It is often associated with difficulties in phonemic awareness, decoding, and fluency. The child may have trouble sounding out words, recognizing words, and remembering word spellings. Dyslexia is not related to vision problems, and vision tests are usually normal.
**Why Each Wrong Option is Incorrect**
* **Option A:** Dysgraphia is a separate learning disorder characterized by difficulties in writing, not reading or spelling. While it can coexist with dyslexia, it is a distinct condition.
* **Option B:** Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by symptoms of inattention, hyperactivity, and impulsivity. While children with ADHD may have learning difficulties, dyslexia is a specific reading disorder.
* **Option C:** Vision problems, such as amblyopia or strabismus, can cause difficulties with reading and writing. However, the child's normal vision test rules out a primary vision-related cause.
**Clinical Pearl / High-Yield Fact**
Dyslexia affects approximately 5-10% of children worldwide, and early identification and intervention can significantly improve outcomes. Educators and parents should be aware of the signs and symptoms of dyslexia to provide timely support.
**Correct Answer:** . Dyslexia.