Aging eyes, honest answers.
Presbyopia and cataracts are the two big changes eyes face after 40. GS Eye Center in Gangnam, Seoul treats both - laser and micro-incision cataract surgery, nine premium IOLs and the ArtiPLUS implant - under one published rule: if you have no cataract, you will not be offered cataract surgery.
“GS Eye Center does not perform cataract surgery on eyes that do not have cataracts.”
This is the clinic's published policy, and it shapes every consultation. If your exam shows presbyopia but no cataract, you will hear non-cataract options instead: laser presbyopia correction, or the ArtiPLUS lens implant, which leaves your natural lens in place. Cataract surgery is proposed only when a cataract is actually there.
What is presbyopia - and what is a cataract?
They arrive around the same age and are often confused, but they are separate conditions with separate treatments.
The lens stiffens and stops focusing up close
With age, the crystalline lens hardens and loses elasticity, and the muscles that flex it weaken. The eye can no longer increase its refractive power, so distance vision stays clear while near objects - a book, a phone - turn blurry. It typically begins in the 40s.
The lens turns cloudy and blocks light
A cataract is a clouding of the lens that keeps light from passing through properly. Vision dims and looks foggy. Most cases are age-related; congenital cases and cataracts after trauma or inflammation also occur. One quirk: as the lens hardens, the eye can shift toward myopia, so near vision may suddenly seem to improve.
Could it be a cataract?
If any of these keep recurring, the clinic recommends a precision eye exam.
You see double
Objects appear as two or more images - and they still overlap with one eye closed.
Focus will not settle
Your eyes struggle to lock onto a sharp focus at any distance.
Glare and light scatter
Bright light dazzles you, and lights bloom or streak more than they used to.
Night driving got hard
Oncoming headlights and dim contrast make driving after dark difficult.
Vision suddenly “improved”
Near vision that abruptly gets better can be the hardening lens shifting your eye toward myopia.
Get it examined
Self-checks only raise suspicion; a precision exam gives the answer.
Book a free consultation →What are my treatment options?
The path depends on one question the exam answers first: is there a cataract, or not?
| Your eyes | Treatment path | What it involves |
|---|---|---|
| Presbyopia, no cataract | Laser presbyopia correction (monovision) | Laser correction that delays the point where reading glasses are needed. It postpones them rather than removing the need for life. |
| Presbyopia, no cataract - natural lens preserved | ArtiPLUS presbyopia lens implant | A multifocal lens placed in front of the natural lens. Cornea and lens stay intact, and the lens can be removed later. |
| Cataract present | Micro-incision or laser cataract surgery | The clouded lens is removed through a roughly 2 mm incision (Centurion) or with the FEMTO LDV Z8 femtosecond laser, then replaced with an IOL. With a monofocal IOL, distance vision improves and reading glasses are still needed. |
| Cataract and presbyopia | Multifocal IOL cataract surgery | One procedure treats both: the cataract is removed and a multifocal lens restores near and distance vision. Nine premium IOLs are stocked for matching. |
The three pages that explain the details
Smart Cataract System
How the clinic decides between FEMTO LDV Z8 laser surgery and 2 mm micro-incision surgery - measured on the IOL Master 700 and GALILEI G4 first.
How surgery is planned →Premium IOL lineup
Nine intraocular lenses from Alcon, ZEISS, Hoya, Ophtec and Johnson & Johnson, compared by focal design and what each is suited to.
Compare the nine lenses →ArtiPLUS implant
A presbyopia option for people in their 40s and 50s without cataracts: a removable multifocal lens that preserves the cornea and natural lens.
See if you qualify →
Planning this trip for a parent - or with one?
Cataract care is often a family decision, and many overseas Korean families arrange it around a Seoul visit. Two scheduling facts matter: the clinic operates on one eye at a time, usually 1-2 days apart, and early cataracts may simply be monitored rather than operated on. A coordinator maps exam and surgery dates onto your travel window in English before you book flights - and your parent can be seen in Korean throughout.
- Gangnam Station Exit 1 - exams, surgery and follow-ups at one address
- One eye at a time, 1-2 days apart - plan the stay accordingly
- Remote follow-up guidance after you fly home
A cataract track built on 19 years of surgery
Presbyopia and cataract care at GS runs on the clinic's longest-standing surgical experience. The credentials below are the ones the clinic itself publishes, and its Korean site publicly lists actor Cheon Ho-jin and singer-professor Jang Hye-jin among its multifocal cataract patients.
Every presbyopia and cataract plan starts with a precision exam - not a sales pitch. If surgery is not needed, that is what you will be told.
Presbyopia & cataract FAQ
Usually from the 40s. If letters get hard to read during near work - reading, your phone, a monitor - presbyopia is the first suspect. After 40 the risk of cataract, glaucoma and macular degeneration also rises, so the clinic recommends regular eye exams from this age.
Presbyopia is a drop in focusing power - sharpness falls, especially up close. A cataract is a clouded lens - vision turns foggy overall. The two are easily confused and can coexist, which is why a proper exam, not symptoms alone, should make the call.
No. Laser monovision delays the point where you need reading glasses; it does not exempt you for life. The clinic states this plainly during consultation, and for some patients a lens-based option such as ArtiPLUS is the better fit.
Early cataracts are monitored with regular exams. Surgery becomes worth considering when distance vision declines. Waiting too long carries risks: a hypermature cataract can trigger secondary glaucoma, and a hardened lens makes surgery more difficult with a higher complication risk - so the clinic advises operating before that stage.
Many international patients do. Because surgery is done one eye at a time, 1-2 days apart, a coordinator will help you place the exam day and both surgery days inside your stay, and brief you on what follow-up can be handled remotely once you are back home. Start with the free consultation.