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Cornea Lenticule Extraction for Advanced Refractive-Correction (CLEAR) is a femtosecond laser surgery that is used to correct Myopia and Astigmatism without creating a corneal flap; very similar to Small Lenticule Extraction (SMILE) procedure, created with a low energy laser.

CLEAR: The New Version of SMILE (Small Incision Lenticule Extraction)

Cornea Lenticule Extraction for Advanced Refractive-Correction (CLEAR) is the new refractive surgery for Myopia and Astigmatism correction with laser. This procedure is very similar to the Small Incision Lenticule Extraction (SMILE), created with the Femto LDV Z8 femtosecond laser.

Much like LASIK or PRK, CLEAR uses this laser to reshape your cornea, which corrects your vision. To improve your vision using a laser, the surgeon needs to make the correction in the middle, or stromal layer, of your cornea. In PRK and LASIK, the top layer of the cornea is removed or peeled back in order for the laser to access and reshape the stroma. 

With CLEAR procedure, the top layers of the cornea stay intact. A laser generates two thin bubble layers within the stromal layer of the cornea, creating a disc-shaped piece of corneal tissue called the lenticule. The surgeon gently removes the lenticule through a small incision. Removal of the lenticule permanently changes the shape of your cornea, resulting in better vision. 

CLEAR is created with Ziemer´s Z8 Femtosecond laser, providing more options to adjust centration and rotation during surgery, unlike SMILE (Small Incision Lenticule Extraction)

The CLEAR procedure may be a better option for those prone to Dry Eye or those who are not candidates for LASIK. It is also a good option for those seeking a faster visual recovery. Most patients return to their normal routines just a few days after the procedure. 

As laser eye surgery continues to innovate, more surgeries are being done without blades and with much shorter, safer recovery periods. CLEAR is a newer procedure, very similar to SMILE, however there are some advantages to CLEAR, as detailed below.

At a Glance:

  • Similar to SMILE (Small Incision Lenticule Extraction)
  • Good choice for those with Dry Eye conditions 
  • Suitable for those who cannot have LASIK
  • Short recovery time

Benefits and Highlights:

  • No corneal flap
  • No worries about flap dislocation
  • Less risk of dry eye post-refractive surgery
  • Minimal tissue damage
  • Minimal side effects 
  • Less inflammatory response contributes to a quick visual recovery

What to Expect: CLEAR at CODET

CLEAR is similar to Small Incision Lenticule Extraction (SMILE). If we do recommend CLEAR to address your Myopia and/or Astigmatism, you can expect a painless procedure that will take less than 20 minutes to complete in total.



  • We are the first clinic in Mexico to perform CLEAR (Cornea Lenticule Extraction for Advanced Refractive-Correction)
  • Our surgeons are well known for their refractive expertise under the leadership of our founder, Dr. Arturo Chayet

About our Technology and Facilities

CODET provides our experienced doctors with advanced, proven technology and the finest surgical rooms and equipment.

Among our advanced technology is the Ziemer LDV Z8 laser. We choose Ziemer for its product quality and reputation as innovators in surgical laser technology. The Z8 is their latest femtosecond laser unit. This low energy concept is efficient and innovative, providing maximum precision, greater treatment flexibility, and faster, more comfortable recovery for patients.

CLEAR, The New Version of Small Incision Lenticule Extraction (SMILE)

Find out if you’re a good candidate for CLEAR.

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