Korea EVO ICL Procedure Steps in Order: Risks? Cost, Reviews

Korea EVO ICL procedure steps in order: if you're around -10 and a surgeon at home said your corneas are too thin for laser, what happens if you fly to Seoul and the process stops partway? Read this before you plan the trip. You'll see each step from the first measurement to the last check-up, where it can stop and why, what decides the cost, what reviews say about recovery, and the risks worth knowing, so you can judge whether ICL is a realistic plan for your eyes and your budget.

Hello, I'm Dr. Kim Sun-young, Medical Director of Healing Eye Clinic in Gangnam, Seoul, and my specialty is cornea, glaucoma and cataract. For Implantable Lens (ICL) the clinic uses three EVO lenses: EVO Viva, EVO ICL and EVO ICL Toric. One dedicated surgeon follows you from the exam to the check-ups, Japanese, Chinese and English interpreters are on site, and international patients pay the same as Korean patients.

I'm writing this because the surgery is the short part. People often plan the trip around a 15-minute operation, when the steps that can halt the process happen at the exam, well before you're near an operating room.

In order, EVO ICL runs like this: a detailed exam of 20+ tests plus ICL-specific measurements, the surgeon's choice of lens type, power and size, surgery under numbing drops through a small incision, rest at your hotel, and check-ups at day 1, week 1 and month 1. The step most likely to stop the plan is the first.

If a clinic at home gave you an exam printout, send a photo of it on WhatsApp and ask one thing: whether anything on it, such as anterior chamber depth or endothelial cell count, would rule ICL out before you buy a ticket.

Step 1: the measurements that can end the plan

The lens sits inside your eye, behind the iris and in front of your own natural lens. Your cornea isn't reshaped, which is why ICL is often the next conversation when corneas are thin. The questions at this step are about space and long-term health inside the eye.

Three measurements carry most of the weight. Anterior chamber depth tells me how much room there is for the lens. The corneal endothelial cell count tells me whether the inner layer of the cornea can stay healthy for decades with a lens behind it. White-to-white, the width of the eye, is the starting point for lens size. These are added to the 20+ test exam that comes before any vision correction here.

A shallow anterior chamber or a low endothelial cell count is where I stop. So is a history of glaucoma or inflammation inside the eye such as uveitis, and so are pregnancy and breastfeeding. And if your eyes can be corrected safely with laser after all, I'll tell you that too.

Contact lenses change the shape of the cornea, so you'll need to leave them out for a while before the exam. How many days for soft or hard lenses is confirmed in the consultation.

If laser comes back into the picture, how SMILE Pro differs from the surgery underneath it is a useful read before you compare.

Which EVO lens, and why is size the real decision?

All three lenses are made of collamer, none of them reshapes the cornea, and all can be removed. What differs is what they correct. EVO ICL corrects myopia and is used mostly for people in their 20s to 40s. EVO ICL Toric corrects myopia with astigmatism and is aligned to the astigmatism axis. EVO Viva has an extended-depth-of-focus optic and is mainly for people from their mid-40s who are nearsighted and starting to lose near vision. The EVO design was approved by the U.S. FDA for myopia in 2022.

The lens itself is a standard product. What shapes the outcome is choosing a size that keeps a proper distance, called the vault, between the ICL and your natural lens. Too little space, and the ICL sits close to your own lens; too much, and it can crowd the drainage angle at the front of the eye. Which lens and which power you get is decided by the surgeon after the detailed exam.

EVO lenses also have a 360-micrometer hole at the center that lets fluid inside the eye flow through. Older ICLs needed a laser hole in the iris for that; EVO lenses don't.

Say you're 31, living in Toronto, about -10.50 with -2.00 of astigmatism, and your corneas measured thin at home. The toric lens is close to a given. The open question is whether your anterior chamber is deep enough and your endothelial count high enough. If both are, ICL becomes a real plan. If the chamber is shallow, I'd stop there and talk through what's left, even if the trip ends at the exam.

What happens on surgery day, step by step?

The day before: no alcohol, a good night's sleep, and tell the medical team about any medicines you take. On the day: no eye makeup, especially eyeliner and mascara, and loose, comfortable clothing. Having a companion with you helps.

In the operating room, numbing drops are used, a small incision is made, and the folded lens goes in through it and unfolds behind the iris. Your cornea and your own lens stay where they are. Both eyes usually take about 15 minutes, and with numbing drops most people feel little pain.

Afterward you rest at the hotel with your eyes closed, and you don't rub or press them. The clinic's partner hotel is the O'Cloud Hotel in Seocho-gu.

For the minutes inside the operating room in more detail, read the ICL surgery procedure from the surgeon's chair.

Recovery and the check-ups before you fly home

Daily life usually returns in 1 to 2 days. From the next day, reading and screens are fine with regular breaks. A long-haul flight comes only after a check-up confirms that your eye pressure and healing look right. The clinic recommends staying at least 2 to 3 days for the exam, surgery and that check; your own number of days is confirmed in the consultation.

Check-ups are set at day 1, week 1 and month 1, then at regular intervals. Once you're home, the later ones are arranged through video consultation or a referral letter to an eye doctor near you.

The rules for the first weeks are short. Use the prescribed drops at the times given. Don't rub your eyes for at least a week. Keep water from going straight into your eyes when you wash or shower. Wait for your surgeon's OK before sauna, swimming or hard exercise, and wear sunglasses outside.

Plan the calendar against our hours: Monday to Thursday 10:00 to 18:30, Friday until 21:00, Saturday 10:00 to 14:00, closed Sundays and public holidays. Surgery on a Saturday puts the next check on Monday. The full route from exam to flight covers the travel side in more detail.

What can go wrong with ICL, and who should not have it?

Risks and side effects to know

In the first days, mild scratchiness, light sensitivity and some blur are common and usually settle. Halos or glare around lights at night can occur with ICL, and their strength differs from person to person.

Less often, the problems are inside the eye. The U.S. FDA's list of phakic lens risks includes raised eye pressure, cataract, loss of endothelial cells, inflammation, retinal detachment, and the need for another operation to reposition, replace or remove the lens. The American Academy of Ophthalmology's assessment of phakic lenses also points to cataract and endothelial cell loss as the long-term issues to watch. The vault and endothelial measurements in step 1 exist to lower those odds; they don't erase them.

The lens can come out, but removal is another operation, and your myopia returns once it's out.

Who should wait or skip ICL: a shallow anterior chamber, a low endothelial cell count, a history of glaucoma or uveitis, pregnancy or breastfeeding, or a prescription that is still changing. Whether ICL suits your eyes is settled by the exam itself.

If something feels wrong after you fly home: raised pressure can show up as eye pain, headache, nausea or blurred vision. If pain, a drop in vision or anything like that appears, contact the clinic right away and see a local eye doctor the same day. You leave Korea with enough post-op medication, plus information on equivalent ingredients you can find locally. The U.S. CDC advises medical travelers to carry copies of their records and arrange follow-up care at home before they go; put your exam measurements in that folder too.

If you've already been told your corneas are thin, ask the clinic that examined you for your anterior chamber depth and endothelial cell count, send those numbers on WhatsApp, and ask which EVO lens type they point toward.

What decides the cost of EVO ICL

No figure here, because the figure follows your exam. These are the factors that move it:

• The lens type: EVO ICL, EVO ICL Toric for astigmatism, or EVO Viva for myopia with early presbyopia.
• Whether one eye or both are treated.
• The detailed exam with the ICL-specific measurements.
• How many nights you spend in Seoul, and where you stay.
• Follow-up after you're home: video consultation, or check-ups with a local eye doctor using a referral letter.

International patients pay exactly the same as Korean patients. Ask on WhatsApp what it would cost for your case, mentioning whether your prescription includes astigmatism. What the EVO ICL lens price pays for explains the lens side, and the three lenses are listed on our English homepage.

What do reviews say about ICL recovery?

“Back to work the next day.” Partly true. Daily life usually returns in 1 to 2 days and screens are fine with breaks, but the no-rubbing, no-swimming and water rules still apply for a while.

“Halos at night.” They can happen. If you drive at night for work, raise it before surgery, not after.

“It's reversible, so there's nothing to lose.” Wrong. The lens can be removed, but that is surgery too, and the risks above apply to putting it in.

“The operation takes 15 minutes, so the trip is short.” The operation is short; the exam before it and the check-up before your flight set the length of the trip.

If your parents read Korean and want to follow along, the clinic's Korean page on ICL covers the same lens surgery.

When you're ready, message us on WhatsApp with your last two glasses prescriptions if you have them, and ask whether your myopia looks stable enough to plan around. When you come to Gangnam, the 20+ tests and the ICL measurements come first, then we review your results together in your own language with an interpreter, and I recommend the option that fits your eyes, whether that's an EVO lens or something else.