ZEISS SMILE Software module for Small Incision Lenticule Extraction

SMILE® from ZEISS enables the first Small Incision Lenticule Extraction procedure for minimally invasive laser vision correction. It offers a potentially lower incidence of transient dry eye syndrome and a wider preservation of biomechanical stability.

  • Lenticule creation
  • Minimally invasive
  • All-femto

What is SMILE?

ZEISS SMILE is a game-changing software for laser vision correction that goes beyond PRK and LASIK and redefines refractive surgery. It is exclusively performed with the VisuMax® femtosecond laser from ZEISS.

  • Based on Nobel Prize-winning technology (Nobel Prize in Physics 2018)
  • Treatment planning and execution aided by a software wizard
  • Schematic visualization of cutting patterns during treatment planning

Lenticule creation

ZEISS SMILE provides an intuitive and easy-to-use treatment planning interface for Small Incision Lenticule Extraction.

Lenticule creation

Performing SMILE

The images below show how ZEISS SMILE is performed on the VisuMax femtosecond laser in just a few easy steps.

Treatment planning

Data entry of refractive error to be corrected and lenticule parameters.


Lenticule creation

Computer-controlled application of laser pulses to create lenticule planes.

Small incision

Generation of access cut through which the lenticule is extracted.

Lenticule extraction

Manual extraction of the lenticule by the surgeon to correct the refractive error.

Are you a patient?

Please visit our patient website for more information on laser vision correction:

Minimally invasive

With ZEISS SMILE, only a small incision of 2 mm is sufficient, meaning that the majority of the upper corneal layers remains untouched. The lamellar incision area is roughly 1/3 smaller than for Femto-LASIK treatment. What's more, the patient can usually return to their normal daily activities the next day.


ZEISS SMILE precalculates all intracorneal cuts necessary for the vision correction. The entire procedure is carried out in a single treatment process exclusively on the ZEISS VisuMax femtosecond laser.



  • Indication range
    SMILE for myopia and astigmatism
    Treatment range

    Sphere: -0.50 to -10.00 D
    Cylinder: 0 to 5.00 D
    Spherical equivalent: -0.50 to -12.50 D

  • Laser parameters
    Wavelength 1043 nm
    Pulse duration 220–580 fs
    Laser pulse rate 500 kHz

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