A Common Misunderstanding.
Many patients believe that creating a larger or higher double eyelid crease will make the eyes appear bigger.
This assumption is understandable—but incorrect.
A double eyelid crease is a fold in the eyelid skin.
Eye size, however, is determined by how the eye opens, not by how high the crease is placed.
What Actually Determines Eye Size.
The apparent size of the eye depends on pupil exposure and the efficiency of eye opening.
When the eye-opening muscle functions properly, the eye appears clear and open—even with a subtle crease.
When this muscle is weak, increasing crease height does not improve eye size. In many cases, it makes the eyelid heavier.
The Importance of the Eye-Opening Muscle.
The eye-opening muscle is responsible for lifting the upper eyelid and maintaining stable eye opening throughout the day.
If this muscle lacks sufficient strength, the eyelid cannot open fully on its own.
In such cases, the body compensates by recruiting secondary muscles, most commonly the forehead.
This compensation may temporarily make the eyes appear more open, but it is not stable.
Over time, it leads to fatigue, heaviness, and thickening of the eyelid fold.
When Crease Surgery Is Not Enough.
When pupil exposure remains limited despite crease adjustment, the issue is no longer skin design.
At this point, the limitation lies in eye-opening function itself.
Raising the crease cannot compensate for inadequate muscle strength.
This is when ptosis correction becomes important—not to enlarge the eyes, but to allow them to open properly.
Without addressing eye-opening function, increasing crease height only adds weight to an already compromised system.
Why Bigger Is Not the Same as Better.
A higher or larger crease may create a temporary impression of bigger eyes.
However, when function is ignored, this effect does not last.
As the eyelid becomes heavier and compensation increases, the eyes often appear more tired and crowded over time.
Natural eye opening—not exaggerated design—is what sustains clarity.
Our Perspective.
At Ahnsungmin Plastic Surgery, we do not pursue oversized creases.
We evaluate how the eye opens, how the eyelid moves, and whether the eye can remain open without compensation.
When eye-opening function is restored, the crease no longer needs to be large to create a clear and natural appearance.
Seeing the Eye as a Whole, Not in Parts
A Clinic Dedicated to Eyelid Revision Surgery in Korea
Ahnsungmin Plastic Surgery