Seoul cataract specialist: what I won't rush for a flight

Seeing a Seoul cataract specialist on a short trip can work, and the operation is the smallest part of it: at Healing Eye Clinic in Gangnam, cataract surgery takes about 15 to 20 minutes per eye. Most of your days go to measuring the eye before surgery and checking it afterward. The worry I hear most from people on limited leave is whether there's enough time for that check before the flight home.

I'm Dr. Kim Sun-young, medical director at Healing Eye Clinic, and my specialty is cornea, glaucoma and cataract.

Here, one surgeon owns your case from the first exam through surgery to aftercare. On a tight trip that matters, because nothing gets handed between doctors in the few days you have.

There are three things I won't squeeze to fit a flight: the measurement visit, the first check after surgery, and the healing time before a second eye. The rest of your itinerary can bend around them.

If you're still picking dates, have two things ready: a photo of your latest eye exam report from home and the exact window you can take off work. Add the one question you most want answered, for example whether the plan is one eye or both.

The measurement day is where the lens gets chosen

Before cataract surgery, the eye is measured so the replacement lens can be given the right power. The eye's length, the curve of the cornea and the amount of astigmatism all feed that calculation. A small error in any of them shows up later as focus you didn't plan for. That's why I say a good result begins in the exam room, well before surgery day.

Contact lenses can temporarily change the shape of the cornea, so most surgeons ask you to leave them out for a while before measuring. Confirm at consultation how many days that means for your lenses, before you book anything.

Dilating drops are part of the exam. For many people they blur near vision and make bright light uncomfortable for several hours. Plan for the visit to take a good part of the day, confirm the length when you book, and keep the rest of that day clear of anything that needs sharp eyes.

The lens decision is made on this day too. A monofocal lens sets focus for one distance. With a premium lens, cataract surgery can also correct presbyopia and astigmatism in one step. The American Academy of Ophthalmology notes the trade-off: multifocal designs can bring halos around lights at night for some people.

I don't recommend a lens for its own sake. I choose it with you, from your exam data and from how you spend your days, whether that's night driving, reading or long hours on a screen. If you'd like to read ahead, I go through lens choice and timing in my guide to cataract surgery in Korea.

How many days should you plan in Seoul?

I can't give you one number before seeing your eyes, and I'd rather you confirm your stay at consultation than take it from a blog. What I can give you is the shape of the trip, because that rarely changes.

The trip has three fixed points. The measurement visit comes first, then surgery. Book your flight for after that check, never before it.

If both eyes need surgery, the US National Eye Institute notes that surgeons usually operate on one eye at a time and let the first eye heal before doing the second. Whether the second eye fits this trip or a later one is decided by how the first eye settles. I cover that choice in one eye or both, and how long to stay.

Then check your calendar against our hours. We're open Monday to Thursday 10:00 to 18:30, Friday until 21:00 and Saturday 10:00 to 14:00, with lunch from 13:00 to 14:00. We're closed on Sundays and Korean public holidays. So if you have surgery on a Saturday and fly on Sunday or early Monday, there's no clinic day in between. Before you buy tickets, ask at booking which day your first check falls on.

We're at 470 Gangnam-daero, on the 10th and 11th floors, one minute on foot from Sinnonhyeon Station. Our partner hotel is the O'Cloud Hotel in Seocho-gu. To compare where to stay and how to get around, read this note on eye clinics in Seoul, districts and transit.

Can you fly home a few days after cataract surgery?

For many people whose recovery goes without problems, yes. Cataract surgery doesn't leave a gas bubble in the eye the way some retina operations do, so cabin pressure usually isn't the issue. The issues are more practical.

Your eye drops run on a schedule for several weeks, and a long flight across time zones is where doses get missed. Before you leave Seoul, set phone alarms on home time, keep the drops in your carry-on and pack the eye shield if you were given one for sleeping. Cabin air is dry, so the operated eye may feel gritty. That's common in the first days, and it isn't a reason to rub the eye.

Vision often keeps improving for a while after you land, and the first few days can look a little hazy. Read it before you choose your return date.

Driving is the other question for families heading back to the US, the UK or Australia. Each country sets its own eyesight standard for drivers. In the UK, for example, the government's driving eyesight rules state what you must be able to read. Before you drive, ask the eye doctor who checks you at home to confirm you meet your local standard.

What if something feels wrong after you're home?

In short, this is the question I'd want answered before booking if it were my own mother or father.

Risks and side effects to know

Most of what people feel in the first week passes as the eye heals: a scratchy or gritty feeling, sensitivity to light, mild redness, and vision that's sharper at some hours than at others.

Less often, the pressure inside the eye rises or inflammation lingers. That's why the early check matters and why the drops aren't optional. Months or even years later, the thin capsule that holds the new lens can turn cloudy. This is called posterior capsule opacification, and an eye doctor at home can usually clear it with a short laser treatment in the office.

Rare but serious problems include infection inside the eye and retinal detachment. The National Eye Institute lists vision loss, pain that keeps getting worse, and new flashes of light or a shower of new floaters as reasons to see a doctor straight away. If that happens, go to an eye doctor or an emergency department where you are. Don't wait on a message to Seoul.

The fix is to set up your care at home before you fly out. The CDC's advice for medical travelers is to arrange follow-up care at home and to carry copies of your medical records. For eye surgery, that means booking a local ophthalmologist or optometrist for a check after you return. Ask for a copy of your surgery details, including the lens model and power, to give that doctor.

Who I'd ask to wait before booking flights

Some situations make me want to slow the plan down. Diabetes or blood pressure that isn't well controlled, an eye that's red or inflamed right now, or a retina or glaucoma problem that needs its own attention can each change the timing or the order of treatment. None of these rules surgery out on its own. They're reasons to settle things at home first, or to plan a longer stay.

Early cataract is another. If the cloudiness isn't yet getting in the way of driving, reading or work, there's often no medical hurry, and the trip can wait for a season that suits your family.

If cataract surgery or a premium lens isn't right for your eyes, I'll say so clearly and explain what else makes sense. I also don't push more than you need, and that applies to lenses too. If a standard lens fits your life, that's what I'll suggest.

What changes when the patient is your parent?

Often the person searching for a Seoul cataract specialist isn't the patient. You're the one arranging leave, flights and a hotel, while your mother or father has to understand the risks and agree to the lens.

We have interpreters for Japanese, Traditional Chinese and English, and we go through the exam results together in the patient's own language.

If you're the one fitting this around work, note that Friday hours run until 21:00. Our treatments and doctors are listed on Healing Eye Clinic's English homepage.

When you're ready, send the dates you can be in Seoul and a photo of your parent's most recent eye exam report on WhatsApp. Ask the question that's holding the booking back: whether one eye or two fits into the leave you have.