Correction of Uneven Ptosis, Hering’s Law [Board-Certified Plastic Surgeon Ahn Sung-min]

Ahn Sung-min Plastic Surgery

Ahn Sung-min Eye Specialty Plastic Surgery Clinic

AHNSUNGMIN EYE PLASTIC SURGERY

Ahn Sung-min Plastic Surgery focuses exclusively on eye surgery.

Ahn Sung-min Plastic Surgery is an eye-specialized plastic surgery clinic where Director Ahn Sung-min of Yonsei University, who has studied eye plastic surgery for 18 years, personally provides treatment.

AHNSUNGMIN EYE PLASTIC SURGERY

Correction of Uneven Ptosis, Hering’s Law

Ahn Sung-min Plastic Surgery AHNSUNGMIN EYE PLASTIC SURGERY

Ahn Sung-min Plastic Surgery, a clinic known for well-done ptosis asymmetry surgery

Patient Reference

What is asymmetry correction? Asymmetry Correction

In cases of uneven ptosis

In cases of uneven eyes, there are cases where only one side needs correction and cases where both sides need correction.

Case of correcting only one eyelid for uneven eyelids >>>>>

However, if the uneven ptosis is severe, correcting both eyes is the rule according to Hering’s law.

In cases of asymmetry caused only by eyelid differences without ptosis symptoms, the line on the other side can be adjusted and corrected to create symmetry based on one eye.

But uneven ptosis is a different matter.

This can be identified through several tests that compare the strength of the muscles that open both eyes. In cases of uneven ptosis, correction of both eyes is absolutely necessary.

Sometimes, due to a lack of understanding of uneven ptosis, a patient may request surgery on only one eye, but in such cases, the opposite effect of asymmetry may occur after surgery.

An example that clearly shows the comparison of the strength of eye opening before and after correction for uneven ptosis >>>>>

Comparison of eye-opening strength in uneven ptosis correction

In cases of uneven ptosis, both eyes are corrected according to Hering’s law.

(Hering’s Law: When uneven ptosis exists and the eye with more severe ptosis is corrected, the other eye is affected, causing ptosis in the opposite eye to become worse.)

In cases of uneven ptosis, the brain sends signals, but there may be a difference in eye-opening strength. It may seem that simply correcting the weaker eye is enough, but for various reasons the exact opposite result can occur.

Until now, the brain had been sending signals to open the weaker eye, allowing it to open, but after ptosis surgery, the brain recognizes that the eye has become larger. If the brain no longer sends commands, the uncorrected eye may instead stop functioning properly.

When uneven ptosis has lasted for a long time, the brain may give up on opening the eyes, leading to a loss of eye-opening strength or even weakened vision.

In cases where uneven ptosis occurred due to a previous eye-opening muscle correction surgery, the muscle may have been cut or damaged and lost nearly all function. In such cases, a fascia graft may be necessary, and the surgery can become highly difficult.

In repeated revision surgeries, muscle loss increases and adhesions can form, leading to poor surgical outcomes. Therefore, a detailed consultation with a specialist is necessary before planning. In the case of the male patient above, he had already undergone seven eye-opening muscle correction surgeries and fascia grafting at another hospital, and as shown in the photo, one eye muscle was almost absent. Due to adhesions from repeated revision surgeries, he was unable to open his eyes, so the adhesions were released and eye-opening muscle correction surgery was performed.

Causes of uneven ptosis

1. Accidents or genetic factors.

2. When one eye has reduced vision due to amblyopia.

3. Habitually raising one eyebrow.

4. Asymmetry caused by plastic surgery.

5. Undercorrection of ptosis.

If someone has congenital amblyopia, it can affect asymmetry correction, so we recommend a stable surgery through sufficient consultation with a board-certified plastic surgeon.

Eye-specialized plastic surgery clinic Ahn Sung-min Plastic Surgery A H N S U N G M I N E Y E P L A S TI C S U R G E R Y

AHNSUNGMIN PLASTIC SURGERY

Eye-specialized plastic surgery clinic Ahn Sung-min Plastic Surgery

Ahn Sung-min, the guide to eye plastic surgery

The first surgery, and the last surgery too

Ahn Sung-min Plastic Surgery

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✨1:1 consultation and surgery with a board-certified plastic surgeon

Inquiries: 02.414.1114

Consultation: 010. 3507. 3009

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