ICL · Implantable Lens Surgery
Implantable lens surgery corrects vision by placing a lens inside the eye instead of reshaping the cornea. It is the usual route for very high myopia, or corneas too thin for LASIK or SMILE. GS Eye Center stocks four lens types - EVO+ ICL, KPL, GLAZE and Artiflex - and matches the lens to each eye after five pre-operative exams.
When is a lens a better answer than a laser?
Laser correction removes corneal tissue; a phakic lens adds optics without touching it.
The cornea stays intact
Nothing is ablated, so a cornea too thin for laser surgery is not a barrier. The implanted lens sets the eye's refraction to normal without removing tissue.
Ultra-high prescriptions
Myopia so high that laser correction would demand removing too much tissue can be corrected with a lens instead. Severe astigmatism is handled with toric lens versions or astigmatic incisions.
The lens can come out
If your eyes change or the lens causes discomfort, it can be exchanged or removed - the procedure does not permanently alter the cornea.
Why do lens choice and measurement matter so much?
Corneal curvature, degree of myopia and astigmatism, and the astigmatic axis combine into thousands of variations - one lens model cannot fit them all. Sizing errors carry real consequences, which is why measurement comes first.
Aqueous flow can be blocked
An oversized lens can obstruct the eye's internal fluid circulation, which can lead to glaucoma.
Movement wears the eye
An undersized lens can shift inside the eye, reducing corneal endothelial cells and potentially triggering cataract.
Five pre-operative exams before any lens is chosen
Refraction and visual function.
Internal dimensions for lens sizing and placement.
Corneal endothelium health check.
Screening for glaucoma risk.
Retinal health before surgery.
After surgery, scheduled follow-up exams continue as part of after-care. The clinic notes its implantable-lens program is backed by more than 17 years of surgeon experience with these procedures.
Which four lenses does GS keep in stock?
Three posterior-chamber lenses and one anterior-chamber lens, so the match is made to your eye rather than to a single product.
| Lens | Maker | Position | Design highlights |
|---|---|---|---|
| EVO+ ICL | STAAR Surgical (U.S.A.) | Posterior chamber | A global standard for high-myopia correction, used in clinics worldwide with a long safety record. Optical zone widened about 10% to reduce night glare; biocompatible Collamer material; central-hole design, so no separate iridotomy is needed. |
| KPL | Koryoeyetech (Korea) | Posterior chamber | Korean-developed customizable lens, matched 1:1 to your eye's structure. Wide size range; stable centration for night vision and clarity; flexible haptics designed to lower vaulting problems and related complications. |
| GLAZE | Biotech (Switzerland) | Posterior chamber | Sold internationally as EYECRYL PHAKIC. Aspheric design for a wide, undistorted field of view; 2.8mm minimal incision for faster recovery and less pain; UV-filtering material and conical aqueous hole to reduce side effects. |
| Artiflex | OPHTEC (Netherlands) | Anterior chamber | Fixates on the iris - suited to high astigmatism. 3mm small incision for quick recovery with minimal induced astigmatism; no corneal flap, easing dry-eye and inflammation burden; removable, so the surgery stays reversible. |
Four lens types on the shelf means the lens is chosen for your eye - not the other way around.
Names you may recognize
GS Eye Center's Korean site publishes implantable-lens surgery stories from public figures, including:
As published on gseyecenter.com. Individual results vary. More patient stories →
Implantable lens questions
Laser surgery reshapes the cornea itself. Implantable lens surgery inserts an artificial lens - such as GLAZE, EVO+ ICL or Artiflex - that sets the refraction to normal without cutting corneal tissue, which is why thin corneas and very high myopia are not obstacles.
Yes - severe astigmatism can be addressed with a toric version of the implantable lens, or combined with astigmatic incision techniques, depending on your exam results.
The clinic's view, stated plainly: the surgeon's skill and the post-operative management. Lens choice, exact sizing from the five pre-operative exams, and scheduled follow-up checks together determine the long-term outcome.
The lens can be exchanged or removed. Because the cornea was never reshaped, the procedure remains reversible in a way laser correction is not.
Follow-up timing is set case by case at your consultation. International patients plan the visit window with the coordinator in advance, and remote follow-up is arranged through the after-you-fly-home program.