# Dyslexia — Definition & Explanation

> From the SchoolBrowse Education Glossary.
> HTML version: https://schoolbrowse.com/glossary/dyslexia

**In short:** A specific learning disability affecting reading, characterized by difficulties with word recognition, spelling, and decoding.
**Dyslexia** is a specific learning disability that primarily affects reading and related language-based processing skills. It is characterized by difficulties with accurate and fluent word recognition, poor spelling, and decoding abilities, despite adequate intelligence and educational opportunity.

## Signs of Dyslexia

Common signs include difficulty learning letter sounds, trouble sounding out words, slow or inaccurate reading, poor spelling, avoiding reading aloud, and difficulty with rhyming. Signs may appear as early as preschool or become apparent when reading instruction begins.

## Evidence-Based Interventions

Dyslexia responds well to structured literacy instruction that is explicit, systematic, and multisensory. Approaches like Orton-Gillingham directly teach the relationships between sounds and letters in a structured sequence. Early intervention produces the best outcomes.

## Frequently asked questions

**Q: How common is dyslexia?**

Dyslexia affects approximately 15-20% of the population to some degree, making it the most common learning disability. It occurs across all levels of intelligence.
**Q: Can people with dyslexia learn to read?**

Yes! With appropriate instruction, people with dyslexia can become strong readers. They may always read more slowly but can develop excellent comprehension and academic success.
**Q: Is dyslexia related to seeing letters backward?**

Letter reversals are common in early readers and are not a reliable sign of dyslexia. Dyslexia involves difficulty processing language sounds rather than visual problems.

---
Source: SchoolBrowse Education Glossary (https://schoolbrowse.com/glossary). Please attribute and link to https://schoolbrowse.com/glossary/dyslexia when citing this definition.