Clinical Ophthalmology (Jul 2023)

Visual Acuity Prior to Cataract Surgery and Risk of Retinal Detachment – A Population-Based Study

  • Thylefors J,
  • Jakobsson G,
  • Zetterberg M,
  • Sheikh R

Journal volume & issue
Vol. Volume 17
pp. 1975 – 1980

Abstract

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Joakim Thylefors,1 Gunnar Jakobsson,2 Madeleine Zetterberg,2 Rafi Sheikh1 1Ophthalmology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden; 2Department of Ophthalmology, Sahlgrenska University Hospital, Mölndal, Västra Götaland, SwedenCorrespondence: Joakim Thylefors, Ophthalmology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Kioskgatan 1A, Lund, SE - 22242, Sweden, Tel +46 40 333 134, Email [email protected]: To analyze preoperative visual acuity before cataract surgery regarding the risk of rhegmatogenous retinal detachment (RRD) after cataract surgery.Methods: The preoperative visual acuity in an observational cohort study of patients undergoing cataract surgery in Skåne, southern Sweden, during 2015– 2017 was analyzed with data retrieved from the Swedish National Cataract Register. This was then cross-referenced with patients undergoing surgery for retinal detachment at the Skåne University Hospital in Lund from 2015 to 2020. The main outcome was the risk–benefit ratio of measuring preoperative visual acuity before cataract surgery and the risk of RRD.Results: The mean visual acuity in the whole study group (N=58,624), expressed as LogMAR, was 0.40 ± 0.32 (SD). In the group with RRD (n=298), the mean visual acuity was 0.44 ± 0.36 (p=0.07). In the subgroups of RRD, those aged 25 mm 0.42 ± 0.38 (p=0.68), and in those aged 25 mm and male sex 0.44 ± 0.39 (p=0.53). However, there is considerable variations in visual acuity of the various groups and in the high-risk group with RRD aged 25 mm, 15% had a visual acuity of 0.8 or better in the operated eye.Conclusion: There must be strong indications for performing cataract surgery in those with a high risk of retinal detachment, and the patient must be given adequate information on the risk of retinal detachment.Keywords: cataract surgery, myopia, retinal detachment, axial length

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