Chiara Del Noce · Ophthalmology
Blepharospasm and botulinum toxin
Assessment of benign essential blepharospasm and treatment with botulinum toxin, including selected cases of involutional entropion.
Benign essential blepharospasm causes repeated involuntary contractions of the muscles that close the eyelids. Frequent spasms may make it difficult to keep the eyes open and interfere with reading, driving and everyday activities.
Specialist assessment · Botulinum toxin · Planned follow-up
What benign essential blepharospasm is
It is a form of focal dystonia: the eyelids close involuntarily and both eyes may be affected. Frequent blinking, light sensitivity and difficulty keeping the eyes open may also have other causes, so diagnosis requires clinical assessment.
Treatment with botulinum toxin
Botulinum toxin may be used to reduce activity in the muscles involved in the spasms temporarily. Treatment points, dose and intervals are determined individually after diagnosis and may change over time.
The effect is not permanent. Expected benefits, alternatives, contraindications and possible adverse effects are discussed before treatment, including effects that may involve eyelid closure, the ocular surface or eyelid position.
Botulinum toxin and involutional entropion
In selected cases of involutional entropion, or where there is a spastic component, botulinum toxin may be considered as a temporary measure. It does not automatically replace surgical correction: the choice depends on the cause, the condition of the ocular surface, the need to protect the cornea and the person’s general circumstances.
When not to wait
Eye pain, marked redness, reduced vision or a sudden inability to reopen an eye require prompt assessment. New neurological symptoms require emergency medical care.
Frequently asked questions
Does botulinum toxin permanently cure blepharospasm?
No. Its effect is temporary and the response varies between individuals. The need and timing of any subsequent sessions are reassessed clinically.
Is every difficulty opening the eyes caused by blepharospasm?
No. Ptosis, ocular-surface irritation, neurological disorders and other conditions can cause similar symptoms.
Is botulinum toxin always indicated for entropion?
No. It may be considered only in selected situations; for many forms of entropion, definitive treatment may be surgical.
This information is general and does not replace diagnosis, informed consent or a prescription. Indications and treatment details are defined during the consultation.
Specialist assessment
Every recommendation begins with a consultation
Anatomy, function and expectations are considered together to define an appropriate individual pathway.
Appointment information