The Expectation of Symmetry
Many patients expect both eyes to look exactly the same after ptosis correction.
This expectation is understandable,
but it does not reflect how the eyelids actually function.
Even before surgery, most eyes are not perfectly symmetrical.
Differences in muscle strength, skin thickness, and structural support
already exist.
The Eyelid Is Not a Mirror Structure
The two eyelids do not behave as identical structures.
Each side has its own:
• levator function
• tissue resistance
• healing response
Because of this, even when the same surgical approach is used,
the outcome may not appear perfectly matched.
Forcing Symmetry Can Create Instability
Attempting to force both sides to look identical
can lead to excessive adjustment.
This often results in:
• overcorrection
• increased tension
• unstable eyelid position
In these cases, the pursuit of symmetry
compromises long-term stability.
Stability Matters More Than Symmetry
Ptosis correction is not performed to create identical eyes.
It is performed to restore stable and coordinated eyelid function.
A result that is slightly asymmetric but stable
is often preferable to one that appears symmetrical but does not hold over time.
What Defines a Good Result
A successful result is not defined by perfect visual symmetry.
It is defined by:
• consistent eyelid opening
• natural movement during blinking
• structural balance over time
These factors determine whether the outcome remains stable.
The Role of Judgment in Ptosis Correction
Surgical decisions are not based on visual alignment alone.
They are based on identifying what limits eyelid function
and correcting it without creating new imbalance.
In many cases, accepting a small degree of asymmetry
is part of achieving a better overall result.
Internal References
→ See ptosis correction cases
Seeing the Eye as a Whole, Not in Parts
A Clinic Dedicated to Eyelid Revision Surgery in Korea
Ahnsungmin Plastic Surgery