Singapore has one of the highest rates of short-sightedness (myopia) in the world, so it is no surprise that many young adults start wondering about life without glasses or contact lenses. If you are searching for LASIK in Singapore, you will quickly come across two other names: SMILE and ICL. All three are forms of refractive surgery, meaning they change how light focuses in your eye, but they work in different ways and suit different people.
This guide explains the differences in plain terms so you can have a more informed conversation with an eye surgeon. It is general information, not medical advice. Only a qualified ophthalmologist, after a full eye assessment, can tell you whether you are suitable and which option fits you.
How Each Procedure Works
LASIK (laser-assisted in situ keratomileusis) is the longest established of the three. The surgeon creates a thin flap on the surface of the cornea, the clear front window of the eye, folds it back, and uses a laser to reshape the tissue underneath. The flap is then laid back down and heals in place. Because the flap does not need stitches, visual recovery is often quick.
SMILE (small incision lenticule extraction) also reshapes the cornea, but without a flap. A laser creates a small, thin disc of tissue (the lenticule) inside the cornea, which the surgeon removes through a tiny incision. Because the surface is less disturbed, some people find it appealing if they play contact sports or worry about the flap. SMILE has traditionally been used mainly for short-sightedness and astigmatism, and what it can treat may depend on the technology at the clinic.
ICL (implantable collamer lens) does not reshape the cornea at all. Instead, a thin, flexible lens is placed inside the eye, in front of your natural lens and behind the iris. It works a bit like a permanent contact lens that you never handle. ICL is often discussed for people with high prescriptions or thin corneas who may not be good candidates for laser surgery. The lens can generally be removed if needed, though that is a further procedure.
There are also surface laser treatments, often called PRK or TransPRK, which remove the outer layer of the cornea rather than creating a flap. They may be suggested for some patients with thinner corneas, though recovery is usually slower and more uncomfortable in the first days.
Comparing LASIK, SMILE and ICL Side by Side
The table below gives a general comparison. Your surgeon’s advice for your own eyes takes priority over any general pattern.
| Factor | LASIK | SMILE | ICL |
|---|---|---|---|
| What changes | Cornea reshaped under a flap | Cornea reshaped through a small incision, no flap | Lens implanted inside the eye, cornea untouched |
| Often considered for | Wide range of common prescriptions | Short-sightedness and astigmatism | High prescriptions or thin corneas |
| Early recovery | Vision often clears quickly | Vision may take slightly longer to settle for some | Vision often clears quickly, with follow-up checks on eye pressure |
| Reversibility | Tissue removed, not reversible | Tissue removed, not reversible | Lens can generally be removed or exchanged |
| Typical cost level | Usually the lower end of the three | Often similar to or above LASIK | Usually the highest of the three |
Who Is Usually Suitable
Suitability is decided at a pre-surgery assessment, which is often a long appointment with several scans and measurements. Factors surgeons commonly look at include:
- Age and prescription stability. Most clinics prefer your prescription to have been stable for a period before surgery. Young adults whose myopia is still changing may be asked to wait.
- Corneal thickness and shape. Laser procedures remove corneal tissue, so a cornea that is too thin or irregularly shaped may rule out LASIK or SMILE, and ICL or another option may be discussed instead.
- Size of prescription. Very high myopia can push some patients towards ICL.
- Dry eye. Laser surgery can temporarily worsen dryness. Existing dry eye may need treatment first or may affect which procedure is recommended.
- General and eye health. Conditions such as certain autoimmune diseases, uncontrolled diabetes, eye infections, glaucoma or cataracts may affect suitability.
- Pregnancy and breastfeeding. Hormonal changes can affect the eye’s prescription, so surgery is commonly postponed during this period.
- Lifestyle. Contact sports, NS duties, military aviation interests and certain careers can influence the choice. If you are pre-enlistment or serving NSF, check with the relevant authority about any rules on eye surgery and medical grading before booking.
Usually you will be asked to stop wearing contact lenses for a period before the assessment, because lenses can temporarily change the shape of the cornea. Follow the clinic’s instructions on this.
What Recovery Typically Looks Like
Recovery varies by person and procedure, but many patients describe a broadly similar pattern.
- Day of surgery. The procedure itself is usually short. You will need someone to take you home, and your vision may be blurry or hazy.
- First few days. Mild discomfort, watering and light sensitivity are common. You will use prescribed eye drops on a schedule and wear eye shields when sleeping.
- First weeks. Most people return to desk work fairly soon, but the surgeon will give guidance on when you can drive, swim, wear eye makeup and exercise. Avoid rubbing your eyes.
- Longer term. Vision may fluctuate for a while as the eye heals. Dry eyes, glare or halos around lights at night can occur and often improve over time.
Follow-up appointments are part of the package, and keeping them is important. Contact your clinic promptly if you notice sudden pain, worsening vision or signs of infection.
None of these procedures stop natural ageing of the eye. Most people still need reading glasses later in life as near focus changes, and surgery does not prevent conditions like cataracts or glaucoma. People with high myopia should keep having regular eye checks even after successful surgery, because the risk of some eye conditions linked to myopia remains.
Understanding the Cost
Prices vary widely between clinics and change over time, so it is best to get written quotes rather than rely on figures you see online. When comparing, ask what is included:
- The pre-surgery assessment, and whether it is credited if you go ahead
- Surgeon’s fees, facility fees and laser or lens costs for both eyes
- Post-operative medication and eye drops
- The number of follow-up reviews included, and for how long
- Whether any enhancement procedure is covered if your result is not as expected
Refractive surgery is generally treated as an elective procedure. It is often not covered by health insurance or by MediSave, so most people pay out of pocket. Check the current position with your insurer and the CPF Board rather than assuming either way. Some clinics offer instalment plans; read the terms carefully, including any interest or fees.
Questions to Ask Before You Decide
Bring a list to your consultation:
- Am I suitable for LASIK, SMILE and ICL, and why do you recommend one over the others for me?
- What results can I realistically expect for my prescription?
- What are the most common side effects and the less common risks?
- Who will perform the surgery and how often do they do this procedure?
- What happens if I need a further treatment later?
Taking time to decide is perfectly reasonable, and a second opinion is common for any elective surgery. If your vision cannot be corrected well by glasses, lenses or surgery, our guide to living well with low vision covers support available. For a look at how other elective procedures are assessed and paid for, see bariatric surgery in Singapore.
Frequently Asked Questions
Is LASIK, SMILE or ICL covered by MediSave or insurance? Refractive surgery is generally treated as elective, and it is often not covered by health insurance or MediSave, so most people pay out of pocket. Check the current position with your insurer and the CPF Board rather than assuming either way.
Can I get laser eye surgery before or during NS? Rules on eye surgery and medical grading may apply, so check with the relevant authority before booking if you are pre-enlistment or serving NSF. Contact sports and certain careers can also influence which procedure is chosen.
Which procedure suits very high short-sightedness or thin corneas? ICL is often discussed for high prescriptions or thin corneas, since it does not reshape the cornea. Only an ophthalmologist can decide after a full eye assessment, and surface treatments like TransPRK may also be suggested.
Will vision correction surgery mean I never need glasses again? Not necessarily. These procedures do not stop natural ageing of the eye, so most people still need reading glasses later in life. Surgery also does not prevent cataracts or glaucoma, and people with high myopia should keep having regular eye checks.
Can I have eye surgery while pregnant or breastfeeding? It is commonly postponed, because hormonal changes can affect the eye’s prescription. Your surgeon will advise on timing after an assessment, and dry eye or other conditions may need treatment first.
Official sources: HealthHub