EVO Viva vs EVO ICL in Korea: Which Lens Fits Your Eyes?

Hello, I'm Dr. Kim Sun-young, Medical Director of Healing Eye Clinic in Gangnam, Seoul, one minute from Sinnonhyeon Station. I was a clinical professor of cornea and cataract at Uijeongbu St. Mary's Hospital, and I see patients who fly in every week, with an English interpreter on site.

A question I get on WhatsApp more and more: "Dr. Kim, I'm looking at ICL in Korea. Should I get Viva or regular EVO?" If you searched for Korea ICL, Viva vs EVO, you've probably already learned that an implantable lens leaves the cornea alone, and now you're stuck on which lens. That's the right question to be stuck on.

So let me say the honest part first. The lens isn't chosen by price or by what a friend got. It's chosen by your age, your near vision, your astigmatism and the space inside your eye. Here is how I explain it in the consultation room.

Korea ICL, Viva vs EVO: what is actually different?

We offer three lenses at Healing Eye Clinic: EVO ICL, EVO ICL Toric and EVO Viva. All three sit behind the iris and in front of your natural lens, all leave the cornea as it is, and all can be removed if ever needed.

What differs is what each one corrects. EVO ICL corrects nearsightedness. EVO ICL Toric corrects nearsightedness with astigmatism. EVO Viva corrects nearsightedness and presbyopia in one lens, using an extended-depth-of-focus (EDOF) optic. It's approved in Korea, and we keep it in stock. These are the three criteria I use to choose between them.

1. Has your near vision started to slip?

This is the main dividing line between EVO Viva and EVO ICL. If you're nearsighted and still read your phone comfortably, EVO ICL is usually the simpler choice.

If you've started holding menus at arm's length, often from the mid-forties, EVO Viva becomes part of the conversation. A standard ICL would sharpen distance, but you'd likely need reading glasses for near work. An EDOF lens spreads focus over a longer range, more like a zoom than a single fixed point. How much near vision you gain differs from person to person, and I can't promise you'll never need readers.

2. How much astigmatism do you have?

If your exam shows meaningful astigmatism, EVO ICL Toric is designed for that. It is placed at a set angle to match the axis of your astigmatism, so follow-up checks confirm it stays aligned.

If a toric lens rotates, it may need to be repositioned. That's uncommon, but I'd rather you hear it from me now. Toric ICL for astigmatism explains how the axis is measured and why it matters.

3. Is there room inside the eye, and is your natural lens clear?

This criterion applies to all three lenses, and it can end the plan. I measure the depth of the space in front of your natural lens and the cell count of the inner corneal layer, and I check the natural lens for early cataract.

Over forty, that last check matters more. If the natural lens is already clouding, putting a new lens in front of it doesn't make sense, and lens replacement surgery may serve you better. ICL surgery in Korea over 40 covers that decision in more detail.

Why the doctor who measures your eye should choose the lens

I'd rather spend an extra twenty minutes on measurements than pick a lens from a brochure. With ICL, the size and type of the lens come from your numbers, and a wrong choice is not something I want you to discover after you've flown home.

A lens is a long-term decision, so here are facts you can check before you trust us with it. I'm a full member of ESCRS, the European society for cataract and refractive surgeons. The clinic is registered with Korea's Ministry of Health and Welfare to treat international patients, rated 4.8 out of 5 on Google, and charges you the same price a Korean patient pays. ICL surgery here also comes with a lifetime surgery responsibility guarantee. Our Korean-language ICL page describes the procedure for local patients.

So which ICL lens is right for me?

This is roughly how the three lenses sort once I have your exam results. The details of each are on our Implantable Lens (ICL) page.

These are our published prices for both eyes. The full list is on our price page, and what the EVO ICL price in Korea pays for breaks down what is included.

Side effects, and who I'd steer elsewhere

ICL leaves the cornea untouched, but it is still surgery inside the eye. These are the points I go through with every patient.

• Glare or halos around lights at night can appear, especially early on.
• Eye pressure can rise after surgery, which is why we check it the next day.
• Toric lenses can rotate and occasionally need repositioning.
• With EVO Viva, near vision varies from person to person, and you may still use readers for some tasks.
• Inflammation or infection is uncommon, and a lens can be exchanged or removed if needed.

I'd steer you away from ICL if the space inside your eye is too shallow, the inner corneal cell count is low, a cataract is already forming, or your prescription is still changing. Pregnancy is also a reason to wait. In those cases I'll explain what's left, including lens replacement or no surgery for now.

Planning your ICL trip to Seoul

• Before the exam: stop soft contact lenses one week before, hard lenses three weeks before.
• Stay: exam, surgery and a check-up the next day. If your lens must be ordered after the exam, add one to two days.
• First weeks: no rubbing or pressing the eye for a month, a shield while sleeping for one to two weeks, and no sleeping face-down for a month. Eye drops for a month.
• Daily life: washing and showering from day three; eye makeup after one week; saunas, swimming and contact sports after one month.
• Check-ups: one day, one week, one month and three months, then every six months. You leave with a written record so an eye doctor at home can continue.

For the surgery day itself, EVO ICL in Korea, step by step walks through each stage in order.

Don't pick the lens yet — book the measurements

Please don't decide between EVO Viva and EVO ICL from a price table or a forum thread. Decide after someone has measured the inside of your eye and asked how you use your near vision.

Send your current prescription and your age on WhatsApp. The consultation is free, and I'll tell you which lens is worth discussing for your eyes. If ICL isn't a fit, or surgery isn't right for you yet, we'll say so directly.

I look forward to measuring your eyes in Seoul and choosing the lens with you, not for you.

— Dr. Kim Sun-young, Medical Director, Healing Eye Clinic (Sinnonhyeon, Gangnam, Seoul)