Botulinum Toxin Injection (Botox)

Botulinum toxin (Botox, Dysport, Xeomin) injections weaken overactive muscles by blocking nerve signals. In neuro-ophthalmology, it's used to treat involuntary muscle spasms and certain eye movement disorders.

Common Uses

• Blepharospasm
• Hemifacial spasm
• Strabismus (eye misalignment)
• Protective ptosis (intentional lid drooping)

What to Expect

Before Injection

• Review medical history
• Discuss previous responses
• May need to stop blood thinners

During Injection

• Small needle used
• Multiple injection points around eyes
• Mild discomfort (brief pinch)
• Takes 10-15 minutes
• No anesthesia usually needed

After Injection

• Resume normal activities immediately
• Avoid rubbing injection sites for hours
• Effects start in 2-5 days
• Peak effect at 1-2 weeks

How Well It Works

Blepharospasm

• 90%+ improvement
• Significant quality of life benefit

Hemifacial Spasm

• 85-95% improvement
• May reduce spasms dramatically

Side Effects

Common (Temporary)

• Bruising at injection sites
• Mild ptosis (droopy eyelid)
• Dry eye
• Tearing

Less Common

• Weakness of nearby muscles
• Difficulty closing eye
• Blurred vision (temporary)

Duration

• Side effects temporary (weeks)
• Resolve as toxin wears off

Repeat Treatments

• Effects last approximately 3-4 months
• Regular injections needed for ongoing control
• Dose may be adjusted based on response
• Some develop tolerance (rare)

Finding an Experienced Provider

Medical botulinum toxin injections for eyelid and facial spasms differ significantly from cosmetic Botox. The injection sites, dosing, and technique are specialized. Look for a neuro-ophthalmologist with specific experience in treating blepharospasm and hemifacial spasm. Hashemi Eye Care offers medical botulinum toxin treatment for these conditions.