Comparison of optical quality and intraocular scattering after ICL V4c implantation and SMILE for high myopia

Session Details

Session Title: Phakic IOLs

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

Paper Time: 08:52

Venue: Room A3, Podium 1

First Author: : L.Niu CHINA

Co Author(s): :    H. Miao   M. Li   X. Zhou              

Abstract Details

Purpose:

To investigate the optical quality and the intraocular scattering after implantable collamer lens (ICL) implantation with a central hole and femtosecond laser small incision lenticule extraction (SMILE) for high myopia.

Setting:

EYE & ENT Hospital of Fudan University, Shanghai, China.

Methods:

This prospective study comprised 35 eyes of 28 patients (27.1±5.7 years) who underwent ICL implantation and 37 age-matched eyes of 20 patients (age 25.4±3.2 years) who underwent SMILE. The mean preoperative spherical equivalent (SE) of the two groups were -7.41±1.08D and -7.34±0.89D respectively, and the mean astigmatism was no more than 2.00D. An Optical Quality Analysis System was used to quantify modulation transfer function cutoff frequency (MTFcutoff) and objective scatter index (OSI) before, 20 and 90 days after surgery. There was no significant difference in preoperative SE, MTFcutoff and OSI between groups (P>0.05).

Results:

The mean safety indexes of ICL and SMILE group were 1.12 ± 0.17 and 1.10 ± 0.15, and the mean efficacy indexes were 1.11 ± 0.19 and 1.04 ± 0.16 respectively at 90 days postoperatively with no significant difference between groups (P>0.05). In ICL group, MTFcutoff and OSI were not significantly different from preoperation (P>0.05) at 20 days but better than preoperation at 90 days postopeatively (P<0.05). In SMILE group, MTFcutoff didn’t change significantly compared with preoperative values (P>0.05) at each follow up postoperatively, but OSI was still significantly lower than preoperative level at 90 days postoperatively (P<0.05).

Conclusions:

Both ICL V4c implantation and SMILE provided an excellent optical performance including intraocular scattering. Retinal images quality and OSI were better than SMILE after ICL V4c implantation for high myopia.

Financial Disclosure:

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