Short answer
Femtosecond flaps vs microkeratome (blade) flaps — both create the LASIK flap; modern centres prefer femto for thickness control and elimination of blade variables.
Side-by-side comparison
| Factor | Femtosecond (VISUMAX, LDV Z8) | Mechanical microkeratome (legacy) |
|---|---|---|
| Flap thickness | Highly predictable programmable depth | Good but blade-dependent |
| Flap shape | Customisable edge geometry | Standard hinge designs |
| Complications | Opaque bubble layer (femto-specific, usually transient) | Incomplete flap, buttonhole (rare) |
| SMILE | Femto required | Not applicable |
| Current use | Default at premium centres | Declining in new installs |
If your clinic quote says 'blade LASIK', ask why — most international refractive hospitals default to femto. SMILE bypasses flaps entirely: SMILE Pro guide.
Ready for a personal answer?
Want help choosing a procedure — not just a platform?
Share your prescription and lifestyle — we match procedure and technology honestly.