Refractive Results with SMILE Using Lower Energy Settings in the United States

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2021 Oct 22

PMID 34679121

Citations 1

Authors

Erica T Liu

Ruti Sella

Phillip Goernert

Kevin Kim

Henry Chen

Robert T Lin

Affiliations

Soon will be listed here.

Abstract

Purpose: To report the visual and refractive results of small incision lenticule extraction (SMILE) with low energy settings in the United States (US) and to evaluate outcomes for low astigmatism treatment.

Setting: Private clinical practice.

Design: Retrospective cohort study.

Methods: This study retrospectively reviewed 462 consecutive eyes that underwent SMILE with lower energy settings. Inclusion criteria included all patients between the ages of 19-39 with myopic astigmatism up to -11.25 diopters (D) spherical equivalent (sphere up to -10.00 D, astigmatism up to -3.00 D), and corrected distance visual acuity of at least 20/25. Eyes with low astigmatism (0.25 D-0.50 D) were also included. Outcome analysis was performed according to the Standard Graphs for Reporting Refractive Surgery at postoperative month (POM) 1, and POM 3-6 when data were available.

Results: The mean preoperative spherical equivalent treated was -4.96 ± 2.07; at POM 1, 92% of eyes achieved uncorrected visual acuity (UCVA) of 20/20 or better and maintained visual stability throughout the remainder of the study. At last visit, 431 eyes (93%) achieved UCVA of 20/20 or better, and 461 eyes (99.8%) were 20/25 or better. Ninety-seven (21%) eyes gained at least 1 Snellen line of corrected distance visual acuity and no eyes lost 2 or more lines. Almost all eyes (n = 453, 98%) were within 0.5D of target; 85% of eyes with low astigmatism had ≤0.25 D at last visit compared to 80% of eyes with moderate astigmatism.

Conclusions: SMILE with U.S.-approved low energy settings is safe, predictable, and efficacious and provides patients with a fast visual recovery.

Citing Articles

One-Year Visual Outcomes and Corneal Higher-Order Aberration Assessment of Small-Incision Lenticule Extraction for the Treatment of Myopia and Myopic Astigmatism.

Payne C, Webster C, Moshirfar M, Handlon J, Ronquillo Y, Hoopes P J Clin Med. 2022; 11(21).

PMID: 36362522 PMC: 9655124. DOI: 10.3390/jcm11216294.

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