PMID- 33709325 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210507 IS - 2193-8245 (Print) IS - 2193-6528 (Electronic) VI - 10 IP - 2 DP - 2021 Jun TI - A Randomized Study of the Impact of a Corneal Pre-Cut During Cataract Surgery on Wound Architecture and Corneal Astigmatism. PG - 313-320 LID - 10.1007/s40123-021-00339-0 [doi] AB - INTRODUCTION: The aim of the current study was to assess the effect of a 600-microm corneal pre-cut on wound architecture and its impact on surgically induced astigmatism. The images were acquired intraoperatively and postoperatively with high-resolution spectral-domain optical coherence tomography (SD-OCT). METHODS: This study included patients scheduled for cataract surgery. Preoperatively, optical biometry and corneal topography were performed (IOL Master 500 and Atlas 9000, both Carl Zeiss Meditec AG, Germany). The first eye randomly received a 600-microm corneal pre-cut during cataract surgery, or a single-plane stab-incision and the second eye received the other incision technique. Incision architecture was assessed intraoperatively using a continuous intraoperative optical coherence tomography (iOCT) device (ReScan 700, Carl Zeiss Meditec AG, Germany) at three time points: after the incision, after irrigation/aspiration and after intraocular lens (IOL) implantation. Additionally, OCT (Spectralis, Heidelberg Engineering, Germany) measurements were performed 1 h, 1 week and 1 month postoperatively. RESULTS: Forty eight eyes of 24 patients were analysed. The pre-cut group and the stab-incision group had a significant decrease in wound thickness from the 1-h to the 1-week measurement (p = 0.022 and p = 0.001). Corneal astigmatism showed a vector difference from preoperatively to the 1-week measurement of 0.48 D (SD, +/- 0.27) in the stab incision group and 0.49 D (SD, +/- 0.24) in the stab incision group. No significant differences were found between the groups. CONCLUSION: To our knowledge, this was the first study which compared the wound alterations in pre-cut and stab-incision groups. TRIAL REGISTRATION: NCT02155270. FAU - Doeller, Birgit AU - Doeller B AUID- ORCID: 0000-0001-6133-1469 AD - VIROS-Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria. b.doeller@viros.at. FAU - Hirnschall, Nino AU - Hirnschall N AD - VIROS-Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria. AD - Moorfields Eye Hospital NHS Foundation Trust, London, UK. FAU - Fichtenbaum, Maria AU - Fichtenbaum M AD - VIROS-Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria. FAU - Nguyen, Phuong-Mai AU - Nguyen PM AD - VIROS-Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria. FAU - Varsits, Ralph AU - Varsits R AD - VIROS-Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria. FAU - Findl, Oliver AU - Findl O AD - VIROS-Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria. oliver@findl.at. AD - Moorfields Eye Hospital NHS Foundation Trust, London, UK. oliver@findl.at. LA - eng SI - ClinicalTrials.gov/NCT02155270 PT - Journal Article DEP - 20210311 PL - England TA - Ophthalmol Ther JT - Ophthalmology and therapy JID - 101634502 PMC - PMC8079538 OTO - NOTNLM OT - Cataract surgery OT - Corneal astigmatism OT - Pre-cut OT - Stab-incision EDAT- 2021/03/13 06:00 MHDA- 2021/03/13 06:01 PMCR- 2021/03/11 CRDT- 2021/03/12 07:32 PHST- 2020/12/21 00:00 [received] PHST- 2021/02/23 00:00 [accepted] PHST- 2021/03/13 06:00 [pubmed] PHST- 2021/03/13 06:01 [medline] PHST- 2021/03/12 07:32 [entrez] PHST- 2021/03/11 00:00 [pmc-release] AID - 10.1007/s40123-021-00339-0 [pii] AID - 339 [pii] AID - 10.1007/s40123-021-00339-0 [doi] PST - ppublish SO - Ophthalmol Ther. 2021 Jun;10(2):313-320. doi: 10.1007/s40123-021-00339-0. Epub 2021 Mar 11.