2026-05-25
Q. Is it possible to perform ptosis correction on only one eye?
Learn about the possibility of single-eye ptosis correction and the importance of Hering’s Law in achieving balanced results.
Hello!
We have prepared a brief session to explain a topic many of you might be curious about. ^^
Q) Is it possible to perform ptosis correction on only one eye?
A) Hello. This is Dr. Young Moon Yoo, the representative director of VIBE Plastic Surgery, for 1-Minute Plastic Surgery.
Today’s question is, ‘Is it possible to perform ptosis correction on only one eye?’
Both eyes receive signals from the brain simultaneously to open. For example, if one eye is not opening well, the brain sends a strong signal to both eyes saying, ‘Hurry up and open your eyes.’ However, after performing ptosis correction on only that one eye, the opposite eye—which seemed fine or even appeared to open well—might suddenly start drooping. This happens because the eye that couldn’t open well can now open easily after surgery, causing the brain to significantly reduce the intensity of the signal to open the eyes. It is a bit like a seesaw, isn’t it? This is known as Hering’s Law.
Therefore, if the surgery is performed with a thorough understanding of this principle, ptosis correction on only one eye is certainly possible.
1-minute completion. 1-minute plastic surgery. This was Director Young Moon Yoo.
Frequently Asked Questions
Is it possible to have ptosis correction surgery on only one eye?
Yes, ptosis correction surgery on only one eye is certainly possible. However, since both eyes receive signals from the brain simultaneously, it is important to accurately understand principles like Hering's Law before proceeding with the surgery.
What is Hering's Law?
Hering's Law refers to the principle that the brain sends signals to both eyes simultaneously to open. If one eye doesn't open well, the brain sends strong signals to both, and after one-sided ptosis correction, the amount of signal may decrease, causing the other eye to open less.
Can the other eye open less after one-sided ptosis correction?
Yes, that can happen. Due to Hering's Law, if the eye that couldn't open well now opens properly after surgery, the amount of signal the brain sends to open the eyes decreases, which can suddenly cause the unaffected opposite eye to open less.
What should be considered when performing one-sided ptosis correction?
When performing one-sided ptosis correction, it is crucial to fully understand brain signal transmission principles like Hering's Law and plan the surgery accordingly. This allows for preparation for potential changes in the balance of both eyes after surgery.