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Sensory deprivation strabismus
Strabismus
Key Points
- •Sensory deprivation strabismus is always secondary to visual loss - the FIRST step is to identify and treat the underlying cause, not to operate on the squint.
- •Children <5 years develop esotropia (failure to develop fusion); older children and adults develop exotropia (breakdown of existing fusion).
- •Every child with strabismus MUST have a dilated fundus examination to exclude retinoblastoma - leukocoria and strabismus are its two most common presenting signs.
- •Congenital cataract surgery must be performed by 6–8 weeks of age for dense unilateral cataract to prevent irreversible stimulus deprivation amblyopia.
- •Strabismus surgery in sensory deprivation is primarily cosmetic - binocular vision is rarely restored if the visual deficit persists.
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17 more sections are included with the Clinical plan.
- Definition
- Epidemiology
- Aetiology and causes
- Pathogenesis
- Classification
- Risk factors and associations