Why does the skin around the eyes age prematurely?
The skin around the eyes is the thinnest skin on the face. The subcutaneous fat layer is minimal, collagen density is low, and the average person blinks 15-20 thousand times a day. Each blink is a circular contraction of the orbicularis oculi muscle. During a smile, this contraction is much stronger. This intense and repetitive movement prematurely fatigues the skin's collagen network, and dynamic crow's feet begin from the age of 25.
Additionally, the area around the eyes is the most exposed to the sun. UV damage accelerates collagen breakdown and turns dynamic lines into static ones. Therefore, the treatment of crow's feet should be considered not only with botox but also with sun protection, retinol, and peptide-containing eye products.
Injection map and dosage
A typical crow's feet plan includes 3-4 points for each eye and 2-4 units per point (a total of 10-16 units per side). Injections are made 1 cm outside the bony border, along the line descending from the lateral end of the eyebrow to the cheek. The needle angle is parallel to the surface and very superficial; a deep needle increases side effects.
In men, the dose can increase by 30-40%. In elderly patients, since the muscle is thin and the skin is loose, doses are kept low; an overdose can make the skin appear "hanging." In young patients, even a low dose gives dramatic results when the dynamic line is not yet deep — which is why mini doses are ideal under 30 years of age.
Attention:Injections near the lower eyelid are never performed. The lower part of the orbicularis oculi is the part that closes the eyelid but does not lift it. When the needle goes into this area, the lower lid relaxes, sags like a bag, and lacrimation (tearing) can be impaired. Safe limit: stay at least 1 cm outside the bony orbital rim.
How to preserve the naturalness of a smile?
Crow's feet are the most sincere part of a smile. Wrinkles radiating from the side of the eye are a sign that the smile is genuine — known as a "Duchenne smile." Erasing all crow's feet leaves the smile looking fake. Therefore, my goal is to reduce wrinkles, not to eliminate them. A slight line should remain when smiling; the line should disappear at rest.
The way to achieve this balance is to avoid touching the deep fibers close to the bony orbital rim and to target only the superficial fibers that produce the outer line. I explain this to the patient: "I will not flatten your smile; I will soften the very deep lines at the corner of your eye. Your smile should remain your own."
Age-based approach
Dynamic crow's feet begin to form in the early 30s. At this stage, a combination of low-dose botox (8-10 units per side) and skincare is effective. In the late 30s to early 40s, the line deepens; skin boosters or microneedling are added to botox. After 45, static lines may have settled; at this stage, a plan supported by laser or micro-filler gives more realistic results. Botox alone does not give the same result at every age.
Additionally, in patients with under-eye dark circles/bags, crow's feet botox can make the bags more prominent in the early stages. In these patients, the under-eye area is first evaluated (filler/PRP if provided), then the upper area is balanced with botox. The order of the plan does not change.