Comparison of the subjective pain and clinical outcomes between small incision lenticule extraction and laser-assisted subepithelial keratomileusis for low myopia correction

Session Details

Session Title: SMILE, LASIK and Re-treatment

Session Date/Time: Monday 09/10/2017 | 14:30-16:00

Paper Time: 15:15

Venue: Room 2.1

First Author: : X.Qirui CHINA

Co Author(s): :    Q. Xiao   X. Zhou   Y. Shen   J. Zhao   S. Shi   T. Wang     

Abstract Details

Purpose:

To investigate the differences in safety, efficacy, predictability, stability and subjective pain between small incision lenticule extraction (SMILE) and laser-assisted subepithelial keratomileusis (LASEK) for low myopia correction.

Setting:

1、Key Lab of Myopia, Ministry of Health, Department of Ophthalmology, EYE & ENT Hospital of Fudan University, Shanghai, China 2 、Department of Optometry, Neweye Hospital, Shanghai, China 3、 Department of Ophthalmology, 85 Hospital of People’s Liberation Army, Shanghai, China

Methods:

Forty-three eyes of 30 low myopic patients (26.42±6.83years; 18 male and 12 female) were enrolled. The mean value of manifest refraction spherical equivalent (MRSE) was -2.43±0.42 diopters (D). Fifteen of them (19 eyes) underwent SMILE and the remaining 15 patients (24 eyes) underwent LASEK. The uncorrected distant visual acuity (UDVA), manifest refraction, best-corrected distant visual acuity (BDVA), corneal topography, dark-adapted pupil diameter, axial length and radius of the corneal curvature were measured preoperatively. The UDVA, manifest refraction, BDVA, corneal topography and CCT were measured again at 1, 3, 6 and 12 months postoperatively. The subjective pain was assessed

Results:

The mean follow up period was 9.20±4.14 months . The safety indexes of SMILE and LASEK were 1.01±0.01 and 1.01±0.01, respectively. The efficacy indexes of SMILE and LASEK were 1.02±0.01 and1.01±0.02,respectively. The MRSE of the 94.7%after SMILE and 22 eyes (91.7%) after LASEK were within ±0.25D; 94.7% of the post-SMILE patients and 54.2% of the post-LASEK patients felt painless (VRS=0), 5.3% of the post-SMILE patients and 33.3% of the post-LASEK patients felt mild pain (VRS=1), 12.5% of the post-LASEK patients felt medium pain (VRS=2), and no one had severe pain (VRS=3), at 1 day postoperatively.

Conclusions:

SMILE is superior to LASEK in subjective pain at the early stage postoperatively. Both SMILE and LASEK procedures are safe, efficient, predictable and stable for low myopia correction.

Financial Disclosure:

NONE