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In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon!

Objet Plastic Surgery · 오브제성형외과의원 · February 26, 2026

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! Hello. This is Objet Plastic Surgery. When thinking about eye surgery, the first thing many people do is look for...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Objet Plastic Surgery

Original post date: February 26, 2026

Translated at: April 22, 2026 at 2:36 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

In-Out Line Celebrities?

6 Idols Chosen by Director Park Si-hyeon!

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 1

Hello.

This is Objet Plastic Surgery.

When thinking about eye surgery, the first thing many people do is look for reference photos.

There are really many people who save idol photos, bring them to the consultation room, and say, "Please make my eyes like this."

But the photos that are often seen in consultation rooms these days have something in common.

They repeatedly feature the eyes of in-out line celebrities.

Eyes that are glamorous but not excessive, and have a definite mood without looking artificial.

Eyes that make you want to avoid looking like you had surgery, while still wanting your eyes to look clearly beautiful.

That kind of eye shape is the trend right now.

So today, I’d like to talk about six idols with attractive in-out lines, chosen directly.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 2

Let’s take a look at who was selected, and why their eyes look beautiful.

If you focus for just a moment and read through, you’ll get a better sense of what kind of eyes are trending these days,

and what criteria you should consider more important than trends.

The 6 in-out line idols chosen by Director Park Si-hyeon!

The first is Hearts2Hearts’ Ian.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 3

Even though Ian’s double eyelid line is thin and low, the inner corner of the eye is clearly defined.

An in-out line is a shape where the front part of the line shows slightly at the inner corner of the eye,

and for that to show properly, the front part of the eye needs to be sufficiently open.

If there is an epicanthic fold or if the front part of the eye is covered, the front part gets hidden inside the fold and the line is hard to see.

Ian has a well-opened inner eye area, so even with a low line, the front part shows clearly.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 4

That’s why a refined eye shape is completed that feels natural yet still has a defined line.

The second is IZNA’s Bang Ji-min.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 5

The line extends long toward the back, giving the eyes a refreshing open look to the side.

The key point of this eye shape is that the line continues clearly all the way to the end.

If a double eyelid line breaks in the middle or becomes blurry toward the back, the eyes can look tightly closed and cramped.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 6

When the line remains evenly clear all the way to the end, like Bang Ji-min’s, the whole eye looks refreshing and glamorous.

The third is ILLIT’s Wonhee.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 7

An in-out line fits especially well with eyes that are deep vertically, like Wonhee’s.

For eyes that are long horizontally, a more outward-spreading out line suits well,

whereas for eyes with a larger vertical proportion, a line that gently wraps around the eye brings out the three-dimensional look much better.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 8

Wonhee is a case where the shape and the eye proportions match very well, so a cute and soft impression comes together naturally.

The fourth is Baby DONT Cry’s Lee Hyun.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 9

Lee Hyun’s double eyelid line is quite high, but it doesn’t look heavy.

When the double eyelid line is high, the skin above the line can fold down thickly, which can make the eyes look weighted.

But Lee Hyun has strong eye-opening power, so the skin above the line lifts up sufficiently.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 10

So even with a high line, the folded part is neatly organized, and the gaze stays clear and lively.

Through Lee Hyun, you can see that what makes a high line look beautiful depends not only on the height of the line but also on eye-opening power.

The fifth is MEOVV’s Anna.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 11

Anna has eyes that are clear without being excessive.

Her line is close to a semi-out line, but her gaze is strong and distinct, so her eyes themselves have a strong presence.

The key in this eye shape is eye-opening power.

If eye-opening power is weak, even if the double eyelid line is clearly defined, the upper eyelid can droop down and blur the gaze.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 12

Anna has enough eye-opening power that both the line and the gaze stay alive, and a strong yet natural impression is completed.

The sixth is BABYMONSTER’s Asa.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 13

The actual double eyelid height is quite high, but in photos it looks much more natural.

As mentioned in Lee Hyun’s case, the higher the double eyelid line, the more skin gets folded,

a nd the upper eyelid can easily look thick and heavy.

But when the skin is thin, that sense of thickness itself is reduced.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 14

Asa has thin skin, so even with a high line, the folded area is processed in a thin and neat way.

On top of that, she also has strong eye-opening power, so the line stays clear and a natural impression is completed.

In the end, double eyelid design is not just about the height of the line.

Eye-opening power, skin thickness, and eye shape all need to match together for a beautiful eye shape to be completed.

Can I do the same? Three common points among in-out line celebrities

If you look at the eye shapes of the six people, three common points stand out.

A line that is not too low, eye-opening power, and harmony with the face as a whole.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 15

If you look at the double eyelid line in particular, the front part is slightly visible from the inner corner of the eye.

It doesn’t show too much like a full out line, and it’s not hidden only inside like an embedded line,

but rather a design that sits between the two.

The reason this line has become a trend now is simple.

Because it looks beautiful just by the eyes, but isn’t excessive, it blends well with the face.

And another big reason is that as time passes, it continues to look good without giving the feeling that the eyes are too large or unnatural.

As you read this far, you may have wondered, "Can I become like that too?"

But unfortunately, the eye shapes of in-out line celebrities don’t appear the same on everyone.

The reason is that eye structure differs from person to person.

If the eyes are vertically large, this line suits especially well,

and if eye-opening power is strong, even a higher line can look natural.

On the other hand, even at the same height, if eye-opening power is weak, it can look heavy,

so it is important to first understand your individual eye structure.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 16

Trends only show the direction.

The key is not the idol’s eyes in the photo, but finding the design that suits my face best.

Even if you bring the same reference photo, the result can be completely different depending on eye structure.

That’s why a reference photo is only a tool for setting direction, and understanding your own eye structure first is the most important starting point.

This is also the first thing that should be checked during consultation.

The size and shape of the eyes, eye-opening power, skin thickness, and whether an epicanthic fold is present all need to be examined carefully before deciding on the line design.

Creating beautiful eyes is about diagnosis, not design.

That’s why at Objet Plastic Surgery, we begin with diagnosis before design.

If eye-opening power is weak, we consider combining it with ptosis correction, and depending on skin thickness and eye shape, we decide how to adjust the height and shape of the line.

Only when these decisions are made first can we achieve a result that comes closest to the eye shape you want.

This is why even the process of deciding on one line requires looking at quite a lot.

The most decisive common point among the six idols introduced today is ultimately one thing.

Eyes that are not excessive, but clearly present.

Trends in eye surgery change a little each year.

But even when trends change, there is something that does not.

A natural impression that harmonizes with the face is always the most long-lasting beauty.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 17

Director Park Si-hyeon of Objet Plastic Surgery carefully examines eye structure, eye-opening power, and skin characteristics,

and instead of simply reproducing an idol reference as it is,

finds a design so that the atmosphere can be naturally completed on your own face.

Reference photos are helpful for setting the direction,

but the final answer lies in how well it harmonizes with your own face.

In-Out Line Celebrities? 6 Idols Chosen by Director Park Si-hyeon! image 18

If you are considering eye surgery, I recommend discussing your own eye structure first, rather than starting with photos.

This has been Objet Plastic Surgery.

Thank you.

<🔽🔽A video that may be helpful to watch together🔽🔽>

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  • This post is medical information written by Objet Plastic Surgery Clinic in compliance with the Medical Advertising Act.

  • Depending on the individual, the effects of the procedure may vary, and side effects may occur. We recommend that you receive sufficient consultation with medical staff in advance before deciding on the procedure.

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