SMILE Procedure Outcomes in China

This study included 352 consecutive patients who underwent a SMILE procedure at the Eye Center, the First Affiliated Hospital of Fujian Medical University, from March 2022 to September 2022. This study followed the tenets of the Declaration of Helsinki and was approved by the Ethics Committee of the First Affiliated Hospital of Fujian Medical University. Written informed consent was obtained from the subjects before participating in this study. Inclusion criteria included the following: minimum 18 years of age, minimum central corneal thickness (CCT) of 480 mm, calculated residual stromal thickness greater than 280 mm, stable refraction for at least 1 year, absence of ocular or systemic diseases, and reproductive status of not being pregnant or breastfeeding. Patients who wore soft contact lenses were instructed to stop wearing them for at least 1 week before measurement (Figure 1).
Each patient underwent an ophthalmologic examination, including diopter of the sphere (S), diopter of the Cylinder (Cyl), intraocular pressure (IOP), slit-lamp examination, scanning laser ophthalmoscope (SLO, Heidelberg Engineering, Heidelberg, Germany), optical biometry (Lenstar LS900, Haag Steit AG, Koeniz, Switzerland) and Pentacam imaging (Oculus Optikgeräte GmbH, Wetzlar, Germany).