amblyopia
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Key facts
- Medical condition.name
- Amblyopia
- Medical condition.synonyms
- Lazy eye
- Medical condition.image
- Child eyepatch.jpg
- Medical condition.caption
- A child wearing an adhesive eyepatch to correct amblyopia
- Medical condition.field
- Ophthalmology, optometry
- Medical condition.symptoms
- Decreased vision
- Medical condition.onset
- Before age five
- Medical condition.causes
- Poor alignment of the eyes, eye being irregularly shaped such that focusing is difficult, one eye being more nearsighted or farsighted, clouding of the lens
- Medical condition.diagnosis
- Vision testing
- Medical condition.differential
- Brainstem disorders, optic nerve disorder, eye diseases
- Medical condition.treatment
- Glasses, eyepatch
Article
14 sectionsContents
- Signs and symptoms
- Cause
- Strabismus
- Refractive
- Deprivation and occlusion
- Pathophysiology
- Diagnosis
- Treatment
- Older age
- Epidemiology
- Research
- References
- Further reading
- External links
Amblyopia, also called lazy eye, is a disorder of sight in which the brain fails to fully process input from one eye and over time favors the other eye. It results in decreased vision in an eye that typically appears normal in other aspects. Amblyopia is the most common cause of decreased vision in a single eye among children and younger adults.
The cause of amblyopia can be any condition that interferes with focusing during early childhood. This can occur from poor alignment of the eyes (strabismic), an eye being irregularly shaped such that focusing is difficult, one eye being more nearsighted or farsighted than the other (refractive), or clouding of the lens of an eye (deprivational). After the underlying cause is addressed, vision is not restored right away, as the mechanism also involves the brain.