Study of 0.05 D High-Precision Refraction to Improve Visual Outcomes in SMILE and FS-LASIK Corneal Surgery

What this Trial Is About

Myopia is increasing rapidly worldwide, with projections estimating nearly half the global population affected by 2050. Corneal refractive surgeries like SMILE and FS-LASIK are common methods to correct myopia, but some patients experience overcorrection or undercorrection after surgery due to limitations in preoperative refraction precision. This trial investigates whether using a binocular wavefront optometry machine to perform 0.05 D precision refraction before surgery can improve postoperative visual quality in patients undergoing these procedures. The study involves two groups one receiving traditional refraction methods and the other using 0.05 D precision refraction with the Binocular Wavefront Optometry Machine for surgical planning. Eligible patients opting for SMILE or FS-LASIK will have their precise refraction data entered into surgical platforms, which then guide the refractive correction during surgery. Follow-up visits are scheduled at 10 days, 1 month, 3 months, 6 months, and 1 year to monitor outcomes. Participants will undergo assessments including uncorrected and best-corrected visual acuity, spherical and cylindrical power measurements, spherical equivalent, and ocular aberrations at multiple time points before and after surgery. Safety monitoring includes intraocular pressure and anterior segment examinations. The study aims to measure the proportion of patients achieving specific visual acuity levels and refractive accuracy, with data collected over a one-year postoperative period.

Clinical Application Research of 5-Degree (0.05 D) Precision Optometry in Corneal Refractive Surgery