Comparison of refractive outcomes and optical quality after implantable collamer lens with a central hole implantation and femto-second laser small incision lenticule extraction for low to moderate myopia

Session Details

Session Title: Phakic IOLs

Session Date/Time: Sunday 23/09/2018 | 08:00-10:00

Paper Time: 08:46

Venue: Room A3, Podium 1

First Author: : X.Wang CHINA

Co Author(s): :    H. Miao   X. Chen   L. Niu   F. Zhao   X. Zhou        

Abstract Details

Purpose:

To compare the refractive outcomes and optical quality after implantable collamer lens with a central hole (ICL V4c) implantation and femto-second laser small incision lenticule extraction (SMILE) for the correction of low to moderate myopia.

Setting:

Eye & ENT hospital of Fudan University

Methods:

Prospective cohort study. Patients with preoperative spherical equivalent refraction (SER) ≥ -6.00 D, corrected distance visual acuity (CDVA) ≥ 20/20 and age ≤ 40 years were included. Thirty consecutive patients (30 eyes) went through ICL V4c implantation (GV), and 31 consecutive patients (31 eyes) went through SMILE (GS). Refractive outcomes including safety, efficacy, predictability were evaluated at 3 months after operation. Retinal image quality and intraocular scattering were measured with an objective optical quality analysis system (OQAS II; Visiometrics, Terrassa, Spain).

Results:

At 3 months, SER was -0.17±0.23 D and 0.11±0.24 D(P < 0.05), refractive sphere was 0.05±0.21 and 0.13±0.23 D (P > 0.05), Safety index (CDVA at 3 months versus CDVA before operation) was 1.22±0.18 in GV and 1.18±0.15 in GS (P > 0.05), and efficacy index (uncorrected distance visual acuity at 3 months versus CDVA before operation) was 1.09±0.18 in GV and 1.21±0.17 in GS(P < 0.05). MTF cutoff frequency was 44±7.42 cpd in GV and 38±7.04 cpd in GS (P < 0.05), the mean OSI was 0.46±0.23 in GV and 0.62±0.30 in GS (P < 0.05).

Conclusions:

Both ICL V4c implantation and SIMLE are safe and effective for correcting low to moderate myopia. However, ICL V4c implantation may have advantages over SMILE in terms of the optical quality, possibly due to less interference to the cornea and the high optical quality of the lens implanted per se.

Financial Disclosure:

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