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Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


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Five year results of small incision lenticule extraction (SMILE) and femtosecond LASIK (FS-LASIK) for myopia

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Session Details

Session Title: Presented Poster Session: Refractive Surgery New Techniques/Instrumentation/Devices I

Venue: Poster Village: Pod 2

First Author: : X.Zhou CHINA

Co Author(s): :    M. Li                       

Abstract Details


To compare visual outcomes and aberration outcomes in small incision lenticule extraction (SMILE) versus femtosecond LASIK (FS-LASIK).


Fudan University Eye and ENT Hospital (Shanghai, People’s Republic of China).


In this prospective, comparative, non-randomized clinical study, 68 eyes of 37 patients received SMILE and 55 eyes of 30 patients received FS- LASIK between Dec 2011 and Jan 2013 were included. Patients were followed up at 3 months, 6 months, and 5 years after surgery. Main outcome measurements included Uncorrected (UDVA) and Corrected (CDVA) distance visual acuity, manifest refraction, central corneal thickness (CCT), total corneal refractive power (TCRP), and wavefront aberrations.


Spherical equivalent (SE) after 5 years was -0.01± 0.35 D in the SMILE group and -0.23±0.41D in the FS-LASIK group. A regression of -0.02 D and -0.12 D was observed from 6 months to 5 years postoperatively in SMILE and FS-LASIK, respectively. TCRP showed a 0.39±0.07 D increase in the SMILE group and a 0.45±0.10 increase in the FS-LASIK group from 6 months to 5 years postoperatively. However, no statistically significant difference was found between the SMILE and FS-LASIK groups in terms of △SE, △CCT and △TCRP from 6 months to 5 years postoperatively.


A myopic regression was observed in TCRP but not in subjective refraction. No statistically significant difference in stability was found between SMILE and FS-LASIK.

Financial Disclosure:


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