{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T01:00:39Z","timestamp":1775696439306,"version":"3.50.1"},"reference-count":0,"publisher":"Press of International Journal of Ophthalmology (IJO Press)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Ophthalmol"],"published-print":{"date-parts":[[2022,5,18]]},"abstract":"<jats:p>AIM: To investigate the effect of preoperative factors on visual acuity, higher-order aberrations (HOAs), and index of success for spherical change (S.IOS) after transepithelial photorefractive keratectomy (t-PRK) for treating different grades of myopia.\nMETHODS: This was a retrospective one-armed cohort study where patients with high, moderate, or mild myopia treated with single-step t-PRK using Amaris 500 Hz excimer laser were evaluated for visual acuity, refractive status, corneal topography, HOAs, S.IOS, and mean efficiency and safety index before and 6mo after surgery.\nRESULTS: A total of 154 eyes of 77 patients with mild (n=59), moderate (n=83), and high (n=12) myopia were reviewed. The efficiency and safety indices for vision recovery by single-step t-PRK were 98% and 100%, respectively. The achieved spherical equivalent (SE) was within 1 diopter (D) in 151 (98%) eyes. The median of the S.IOS was 1.18 [interquartile range (IQR) 1.0, 1.4]. The change in S.IOS was significantly correlated with age (P=0.007), 6.5 mm ablation zone (Mann-Whitney U test, P&lt;0.01), and mild and moderate grade of myopia (Kruskal\u2013Wallis test, P&lt;0.001). Trefoil aberration, spherical aberration, and aberration coefficient types of HOA increased significantly (Wilcoxon test, P&lt;0.001) 6mo post-surgery. There was a significant correlation between spherical aberration and aberration coefficient HOAs by myopia grades (P&lt;0.05).\nCONCLUSION: Single-step t-PRK has promising short-term outcomes for refractive corrections and vision improvement to treat all three grades of myopia.<\/jats:p>","DOI":"10.18240\/ijo.2022.05.15","type":"journal-article","created":{"date-parts":[[2022,4,27]],"date-time":"2022-04-27T08:40:04Z","timestamp":1651048804000},"page":"786-792","source":"Crossref","is-referenced-by-count":6,"title":["Factors affecting single-step transepithelial photorefractive keratectomy outcome in the treatment of mild, moderate, and high myopia: a cohort study"],"prefix":"10.18240","volume":"15","author":[{"name":"Department of Ophthalmology, College of Medicine, Qassim University, Qassim, Buraidah 51452, Saudi Arabia","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mansour M.","family":"Al-Mohaimeed","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"7543","container-title":["International Journal of Ophthalmology"],"original-title":[],"link":[{"URL":"http:\/\/ies.ijo.cn\/en_publish\/2022\/5\/20220515.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,4,27]],"date-time":"2022-04-27T08:40:24Z","timestamp":1651048824000},"score":1,"resource":{"primary":{"URL":"http:\/\/ies.ijo.cn\/gjyken\/ch\/reader\/view_abstract.aspx?file_no=20220515&flag=1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,5,18]]},"references-count":0,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2022,5,18]]}},"URL":"https:\/\/doi.org\/10.18240\/ijo.2022.05.15","relation":{},"ISSN":["2222-3959","2227-4898"],"issn-type":[{"value":"2222-3959","type":"print"},{"value":"2227-4898","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,5,18]]}}}