Comparison Of Short-Term Clinical Outcomes Of Lenticule Extraction Surgery Based On Five Different Femtosecond Laser Devices
Published 2025 - 43rd Congress of the ESCRS
Reference: PP12.11 | Type: Free paper | DOI: 10.82333/ndrm-nz11
Authors: SADHWINI M H* 1 , SRI GANESH 1 , SUPRIYA SRIGANESH 1 , DHATRI KARANAM 1
1PHACOREFRACTIVE,NETHRADHAMA SUPERSPECIALITY EYE HOPITAL,BANGALORE,India
Purpose
To compare short-term clinical outcomes of lenticule extractions done by SMILE(VisuMax 500, Zeiss), SMILE pro(VisuMax 800, Zeiss), SILK(ELITA, Johnson & Johnson), CLEAR(Z8, Zeimer) and SmartSight(ATOS, Schwind).
Setting
Nunemiso Eye Center, Seoul, South Korea
Methods
This study retrospectively analyzed 366 eyes of 185 patients who underwent lenticule extraction surgery with VisuMax 500(Zeiss, 104 eyes), VisuMax 800(Zeiss, 108 eyes), ELITA(Johnson & Johnson, 52 eyes), Z8(Ziemer, 56 eyes) and ATOS(Schwind, 46 eyes). Hyperopia or mixed astigmatism patients, extreme high myopia > -9.0D, high astigmatism > -2.5D and pre-operative best corrected vision < 20/20 were excluded. Central corneal thickness (CCT), manifest refraction (MR), higher order aberration (HoA) were measured pre-operatively. The uncorrected distance visual acuity (UDVA) and MR was measured at 1 day and 1 week after the surgery. The UDVA, MR, HoA was recorded at 1 month and 3 month after the surgery and compared.
Results
At 1day post-op, UDVA for VisuMax 500 (SMILE: 1.04±0.19), VisuMax 800 (SMILE pro: 1.14±0.19), Z8 (CLEAR: 0.90±0.16), ATOS (SMART: 0.95±0.08) and ELITA (SILK:1.08±0.12) showed significant differences. However, SEQ at 1day showed no differences(SMILE: -0.11±0.30, SMILE pro: -0.09±0.33, CLEAR: -0.13±0.42, SMART: -0.18±0.27, SILK: -0.13±0.27). At 3 month, UDVA for all groups increased but there showed no significant differences(SMILE: 1.26±0.20, SMILE pro: 1.36±0.18, CLEAR: 1.29±0.19, SMART: 1.25±0.21, SILK: 1.35±0.18). Vertical coma was less induced in SMILE pro and SILK group at 3 month.
Conclusions
All femto-machines showed comparable and superb visual outcomes. There showed slight difference in early post-op visual outcomes depending on suction type, however, at 3 month there showed no differences in uncorrected vision. Centration guid function during docking procedure or secondary centration adjustment after docking may help reduce the induction of higher-order aberrations.