LASIK, PRK, SMILE, and ICL — comparing refractive surgery options for vision correction abroad. Eligibility (corneal thickness, prescription range), technology differences, safety records, and costs ($500–$1,500 per eye in India vs $3,000–$5,000 in the US).
Types of Refractive Surgery
| Procedure | How It Works | Best For | Recovery |
|---|---|---|---|
| LASIK | Corneal flap + excimer laser reshaping | Myopia up to -10D, hyperopia up to +4D, astigmatism up to 4D | 1–2 days |
| SMILE (VISUMAX) | Femtosecond laser creates and removes a lenticule through small incision | Myopia up to -10D; no flap = stronger cornea | 2–3 days |
| PRK/TransPRK | Surface ablation; no flap or incision | Thin corneas, contact-sport athletes | 5–7 days |
| ICL (Implantable Collamer Lens) | A biocompatible lens placed behind the iris | Very high myopia (-6 to -20D), thin corneas | 1 day |
Am I a Candidate?
- Age 18+ (21+ preferred for stable prescription)
- Stable prescription for at least 12 months
- Corneal thickness ≥500μm (for LASIK); ≥480μm (for PRK)
- No active eye diseases (keratoconus, severe dry eye, cataracts)
- Not pregnant or breastfeeding
Red flag: If a clinic offers LASIK without performing a topography scan and pachymetry (corneal thickness measurement), find a different clinic. These are essential safety checks.
What to Expect on Surgery Day
- Arrive at the clinic; anaesthetic eye drops applied (no injections)
- Procedure takes 10–15 minutes for both eyes (laser time is only 20–60 seconds per eye)
- Eyes may feel gritty or watery for a few hours
- Wear protective shields while sleeping for 5–7 nights
- Most patients see 20/20 or better by the next morning (LASIK/SMILE)
Safety Record
LASIK is one of the most studied surgical procedures in history:
- 96% of patients achieve 20/20 vision or better
- 99.5% achieve 20/40 or better (legal driving vision)
- Serious complications (infection, ectasia) occur in <0.1%
- Dry eye (temporary) affects 20–30% of patients for 3–6 months
Cost Comparison (Per Eye)
| Procedure | India | Turkey | South Korea | USA |
|---|---|---|---|---|
| LASIK (bladeless) | $500–$800 | $600–$1,000 | $800–$1,200 | $2,000–$3,500 |
| SMILE | $700–$1,200 | $800–$1,500 | $1,000–$1,800 | $2,500–$4,000 |
| ICL (Visian) | $1,200–$2,000 | $1,500–$2,500 | $2,000–$3,000 | $3,500–$5,000 |
Choosing the Right Clinic
- Technology — latest-generation excimer laser (Wavelight EX500, VISUMAX 800) with eye-tracking
- Surgeon experience — minimum 5,000 refractive procedures
- Comprehensive screening — topography, aberrometry, pachymetry, pupillometry, dry-eye assessment
- Enhancement policy — does the clinic offer free enhancements if neede within 12 months?
Medical Disclaimer: The information provided in this article is for general informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
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