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2026-06-04

Comparing 3 Types of Double Eyelid Lines and a Guide to Finding the Right Eye Surgery for You

The size and shape of the eyes are crucial factors that determine your overall impression. We explore the characteristics of representative double eyelid line types, from the natural in-line to the sophisticated in-out line and the glamorous out-line, and provide a detailed guide to surgical methods suitable for your skin condition, such as natural adhesion and the incision method.

Comparing 3 Types of Double Eyelid Lines and a Guide to Finding the Right Eye Surgery for You

Types of Double Eyelid Lines That Change Your Eye Image: What Are the Differences?

The eyes are a core facial feature where even a subtle change in line height or angle can significantly alter your overall impression. Recently, rather than just making the eyes unconditionally larger, "Custom Fit" eye surgery that considers the harmony of your face shape and facial features has become the trend. To choose the type of double eyelid line that suits you best, it is important to first understand the characteristics of each line.

Comparison of 3 Representative Double Eyelid Lines

Double eyelid lines can be broadly divided into three types based on their starting point and shape.

  • In-line: This line starts from the inside of the inner corner of the eye. The line height is relatively low, creating the most natural look that highlights an Eastern charm.
  • In-out line: A middle ground between the in-line and out-line, this line gradually widens toward the outer corner. It gives a sophisticated and refreshing impression, making it the most popular choice among the public.
  • Out-line: The starting point of the double eyelid is completely detached above the inner corner of the eye. The line is thick and distinct, making it suitable for those who desire a Westernized and glamorous eye shape.

Custom Fit Surgical Methods Based on Skin Condition

To achieve your desired line, it must be supported by an appropriate surgical method tailored to your eyelid thickness, fat volume, and degree of skin sagging.

1. Natural Adhesion Double Eyelid (Non-Incisional)

Without making a skin incision, adhesion points are secured with medical threads through microscopic holes. This method creates a natural line while minimizing concerns about scarring. It is primarily recommended for cases where the eyelid skin is thin and there is no severe sagging.

2. Incisional Double Eyelid

After making an incision along the designed line, unnecessary tissues such as excess fat and muscle are precisely removed. This lowers the probability of the line unraveling and completes a more defined eye shape. It is highly effective for thick eyelids, excess fat, or sagging skin.

Additional Solutions to Enhance Eye Perfection

Rather than simply creating a double eyelid line, correcting the eye-opening muscle strength or the horizontal length of the eyes can lead to a much more dramatic improvement.

  • Non-Incisional Ptosis Correction: Adjusts the strength of the eye-opening muscle (levator palpebrae superioris) to make sleepy-looking eyes appear clear and alert. This is useful for those who have a habit of using their forehead muscles to open their eyes.
  • Triple Canthoplasty: Expands the horizontal and vertical length of the eyes or adjusts the angle of the outer corners through epicanthoplasty, lateral canthoplasty, and lower canthoplasty. It helps to softly alleviate a fierce-looking impression.

Criteria for Choosing Safe Eye Surgery

Although eye surgery is a popular procedure, a diagnosis by a specialist with abundant clinical experience is essential for results that do not require revision surgery. At 345 Plastic Surgery, Dr. Song In-soo, a specialist with 22 years of experience, personally handles everything from consultation to custom design, responsible surgery, and aftercare, considering both functional improvement and aesthetic satisfaction simultaneously.

Frequently Asked Questions

What types of double eyelid lines are there?

There are three main types: in-line, in-out line, and out-line. The in-line starts from the inner corner of the eye, creating a natural look, while the in-out line widens towards the back, giving a sophisticated impression. The out-line starts above the inner corner of the eye, creating a glamorous and Westernized eye shape.

Is double eyelid surgery possible without skin incision?

Yes, it is possible through natural adhesion double eyelid surgery. This is a non-incisional method that creates tiny holes without skin incision and fixes adhesion points with medical thread. It has less concern about scars, looks natural, and is mainly recommended for those with thin eyelids and not severe drooping.

What surgical method is best if I have a lot of fat and thick eyelids?

Incisional double eyelid surgery is the most effective. This is because it precisely removes unnecessary fat, muscle, and other tissues after incising the skin along the designed line. Through this, the probability of the line loosening is lowered, and a clearer and more defined eye shape can be achieved.

Is there a way to correct sleepy-looking eyes?

Yes, it can be improved through non-incisional ptosis correction. It adjusts the strength of the levator palpebrae superioris muscle, which opens the eye, to make sleepy-looking eyes clear and bright. This is a very useful additional solution, especially for those who have a habit of opening their eyes using their forehead muscles.

Can I simultaneously increase the horizontal and vertical length of my eyes?

Yes, it is possible by combining triple canthoplasty. By performing epicanthoplasty, lateral canthoplasty, and lower canthoplasty together, the horizontal and vertical lengths of the eyes can be expanded, and the angle of the outer corner of the eye can be adjusted. This greatly helps to soften a fierce-looking impression.

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