In short: LASIK and ICL both aim to reduce your dependence on glasses or contact lenses, but they work in different ways. LASIK reshapes the cornea with a laser; ICL places a thin lens inside the eye and leaves the cornea untouched. Neither is universally better — the right choice depends on your prescription, corneal thickness and eye health.
How does LASIK work?
LASIK corrects vision by reshaping the cornea, the clear front surface of the eye, with an excimer laser. It is well established and suits many patients with a stable prescription and healthy, adequately thick corneas. At Trivision we offer LASIK and Femto-LASIK, as well as flapless options such as Schwind ATOS SmartSight and Trans-PRK.
How does ICL work?
An ICL (Implantable Collamer Lens) is a thin, biocompatible lens placed inside the eye, behind the iris and in front of the natural lens. Because no corneal tissue is removed, the procedure is considered reversible in principle, and it is often discussed for people whose prescriptions are too high, or corneas too thin, for laser correction. Learn more on our ICL surgery page.
ICL vs LASIK at a glance
| Factor | LASIK | ICL |
|---|---|---|
| What it does | Reshapes the cornea with a laser | Adds a lens inside the eye; cornea untouched |
| Corneal tissue removed? | Yes | No |
| Often considered for | Mild to moderate prescriptions with adequate corneal thickness | High prescriptions, thinner corneas, or dry eye that makes laser less suitable |
| Reversibility | Corneal change is permanent | Lens can be removed or exchanged by a surgeon |
| Type of procedure | Laser surface procedure | Intraocular procedure through a small incision |
Who is likely to be suited to which?
People with a stable, moderate prescription and healthy corneas are often good LASIK candidates. Those with a high prescription, thinner corneas or symptoms of dry eye may be steered toward ICL or a surface option. Age matters too: ICL is generally considered for adults in their twenties up to around their mid-forties, while people over about 40 with reading difficulty may be better served by a lens-based procedure such as refractive lens exchange. Your surgeon will confirm what applies to you.
What are the trade-offs?
Every procedure carries risks. LASIK involves altering the cornea and can temporarily worsen dry eye. ICL is an intraocular procedure, so it needs careful measurement of the space inside the eye, and, as with any internal eye surgery, carries small risks such as infection, changes in eye pressure or, over time, cataract formation. This is why individual assessment matters far more than a general rule.
What to ask at your consultation
- How thick are my corneas, and does that limit any option?
- Is my prescription stable, and what is my range of suitable procedures?
- What are the specific risks for my eyes with each option?
- What would follow-up and recovery look like for my routine?
See how the laser options compare in our SmartSight vs SMILE vs LASIK vs Contoura guide, or book a consultation at Trivision Eye Hospital, Bandra West, for a personalised recommendation.