AUTHOR=Wang Yuexin , Zhang Yu , Wu Tingyi , Ren Xiaotong , Yuan Yifei , Li Xuemin , Chen Yueguo 

TITLE=The impact of patient-reported visual disturbance on dynamic visual acuity in myopic patients after corneal refractive surgery

JOURNAL=Frontiers in Neuroscience

VOLUME=17

YEAR=2023

URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2023.1278626

DOI=10.3389/fnins.2023.1278626

ISSN=1662-453X

ABSTRACT=<sec id="sec1"><title>Purpose</title><p>To investigate the impact of patient-reported visual disturbance on dynamic visual acuity in myopic patients after corneal refractive surgery.</p></sec><sec id="sec2"><title>Methods</title><p>This is a prospective nonrandomized study. Adult myopic patients receiving bilateral photorefractive keratectomy (PRK), femtosecond laser-assisted <italic>in situ</italic> keratomileusis (FS-LASIK), or small incision lenticule extraction (SMILE) with Plano target were included. Eight types of patient-reported visual disturbance were evaluated regarding frequency, severity and bothersome and dynamic visual acuity (DVA) of 40 and 80 degrees per second (dps) was measured postoperatively at 3 months.</p></sec><sec id="sec3"><title>Results</title><p>The study enrolled 95 patients with an average age of 27.6 ± 6.4 years. The most frequently reported visual disturbance was the fluctuation in vision (70.5%), followed by glare (66.3%) and halo (57.4%). Postoperative DVA at 80 dps was significantly associated with the total score of haloes (<italic>p</italic> = 0.038) and difficulty in judging distance (<italic>p</italic> = 0.046). Significant worse postoperative DVA at 40 dps was observed in patients with haloes than those without (<italic>p</italic> = 0.024). The DVA at 80 dps for patients without haloes or difficulty in judging distance was significantly better than that with the symptoms (haloes, <italic>p</italic> = 0.047; difficulty in judging distance, <italic>p</italic> = 0.029). Subgroup analysis by surgical procedures demonstrated that the significant difference in DVA between patients with and without visual disturbance was only observed in patients receiving FS-LASIK.</p></sec><sec id="sec4"><title>Conclusion</title><p>Postoperatively, myopic patients undergoing corneal refractive surgery with haloes or difficulty in judging distance have significantly worse low and high-speed DVA than those without the symptoms. The present study provided the basis for postoperative guidance in daily tasks involving dynamic vision when patients have visual disturbances.</p></sec>