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

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

Purpose:

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

Setting:

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

Methods:

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.

Results:

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.

Conclusions:

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:

None