Medically reviewed and updated for accuracy by Dr Meg Minasian, MBBS, FRCOphth. (Last reviewed: May 2026)
The periocular region around the eyes is one of the most anatomically complex and functionally important areas involved in botulinum toxin treatment.
BTX may be used around the eyes in both:
- aesthetic settings
- and medical treatment contexts.
Because the area contains multiple specialised muscles involved in blinking, eyelid support and facial expression, careful anatomical understanding is particularly important.
Why The Eye Area Is Unique
The tissues around the eyes are highly specialised.
Muscles in the periocular region contribute to:
- blinking
- tear film maintenance
- eyelid position
- brow balance
- facial expression
- and eye protection.
Small changes in muscle activity may therefore influence both appearance and function.
Crow’s Feet and Dynamic Eye Lines
One of the most common aesthetic treatment areas around the eyes involves lateral canthal lines, often referred to as “crow’s feet”.
These lines develop through a combination of:
- smiling
- squinting
- repeated facial movement
- skin ageing
- sun exposure
- and collagen change over time.
BTX may be used to soften excessive contraction of the orbicularis oculi muscle in selected cases.
Why Movement Around The Eyes Matters
Movement around the eyes contributes significantly to:
- facial communication
- emotional expression
- natural smiling
- and social interaction.
Excessive weakening may influence:
- smile dynamics
- blinking patterns
- eyelid support
- natural facial balance.
Modern treatment approaches often aim to preserve natural movement where appropriate.
The Relationship Between Brows and Eyelids
The periocular region functions as an interconnected system.
Changes in:
- forehead muscle activity
- brow depressors
- orbicularis oculi function
- eyelid support
may influence neighbouring structures.
This is one reason why treatment planning around the eyes requires careful anatomical consideration.
Potential Risks and Side Effects
Potential side effects associated with periocular BTX treatment may include:
- eyelid ptosis
- brow asymmetry
- dry eye symptoms
- altered blinking
- asymmetrical smile dynamics
- bruising
- temporary weakness
Most effects are temporary, although severity varies.
Dry Eye and Blinking Function
Blinking plays an important role in maintaining:
- tear film stability
- corneal protection
- ocular surface comfort.
Changes in blinking dynamics may potentially influence dry eye symptoms in some individuals.
This relationship is complex and depends on:
- anatomy
- baseline eye health
- treatment area
- dosing
- muscle balance.
Medical and Therapeutic Uses Around The Eyes
Botulinum toxin is also used medically in conditions involving periocular muscle activity, including:
- blepharospasm
- hemifacial spasm
- facial synkinesis
- and certain neurological movement disorders.
Medical treatment patterns differ considerably from aesthetic approaches.
Why Anatomical Understanding Matters
The periocular region illustrates how BTX treatment involves much more than simple wrinkle reduction.
Successful treatment planning requires consideration of:
- anatomy
- function
- movement balance
- blinking dynamics
- facial expression
- individual variation.
This is one reason why periocular anatomy remains an important area within both ophthalmology and aesthetic medicine.
Frequently Asked Questions
Can BTX be used around the eyes?
Yes. BTX is used around the eyes in both aesthetic and medical settings.
What are crow’s feet?
Crow’s feet are dynamic lines that develop around the outer corners of the eyes during movement and expression.
Can BTX affect blinking?
Changes in muscle activity around the eyes may influence blinking dynamics in some cases.
Can treatment around the eyes still look natural?
Many treatment approaches aim to preserve natural movement and expression.
Is the eye area anatomically complex?
Yes. The periocular region contains multiple specialised muscles with closely related functions.
Related Articles
- BTX and Blinking Explained
- BTX and Dry Eye Explained
- BTX and Facial Anatomy Explained
- BTX for Blepharospasm
- BTX for Hemifacial Spasm
- BTX for Facial Synkinesis
- Eyelid Ptosis After BTX
Medical Disclaimer
The information provided on BTXExpert is intended for educational purposes only and should not be considered medical advice. Individuals should seek personalised advice from an appropriately qualified healthcare professional regarding diagnosis, treatment suitability, risks and alternatives.