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Cluster of Urrets-Zavalia syndrome: a sequel of toxic anterior segment syndrome
  1. Carrie Huisingh1,
  2. Gerald McGwin Jr1,2,3
  1. 1 Center for Clinical and Translational Science, University of Alabama at Birmingham, Birmingham, Alabama, USA
  2. 2 Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
  3. 3 Department of Ophthalmology, University of Alabama at Birmingham, Birmingham, Alabama, USA
  1. Correspondence to Dr Gerald McGwin, Departments of Epidemiology and Ophthalmology, University of Alabama at Birmingham, 609 Eye Foundation Hospital, 1720 University Boulevard, Birmingham, AL 35294, USA; mcgwin{at}

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In the recently published study by Nizamani et al,1 the authors collected data on a best corrected visual acuity (BCVA) following cataract surgery among a group of patients with Urrets-Zavalia syndrome. Using a repeated-measures design, data were collected from subjects preoperatively and at first day, first week and first month postoperatively. We would like to comment on the author's methodology as well as the statistical analysis used.

To assess improvement in vision, the authors compared preoperative vision and 1 month postoperative vision (see table 3 in original …

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  • Contributors GM contributed to the conception of the letter and final approval of the version to be published. CH and GM contributed in drafting and revising the letter critically for important intellectual content. No other people were involved in this work.

  • Funding This editorial was supported by the National Center for Advancing Translational Research of the National Institutes of Health under award number UL1TR00165.

  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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