Article Text

PDF
Mailbox
Comments on 23-gauge versus 20-gauge system for pars plana vitrectomy
  1. A Sinha,
  2. R Narula,
  3. R Narayanan
  1. Retina & Vitreous Service, L V Prasad Eye Institute, Hyderabad, India
  1. Correspondence to Dr Anshuman, Smt Kannuri Santhamma Retina & Vitreous Service, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad 500034, India; asn{at}live.in

Statistics from Altmetric.com

We read with interest the paper by Wimpissinger et al, comparing the sutureless 23-gauge (23GA) system with a standard 20-gauge (20GA) system for pars plana vitrectomy, in a randomised clinical trial.1 We aim to highlight a few issues in the design, methodology and analysis.

The authors have analysed postoperative pain and conjunctival injection as primary outcome measures. The effort by the assessor to elicit a response on the degree of pain is likely to be biased if they are not masked, as in this study. …

View Full Text

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Linked Articles

  • PostScript
    S Binder B Wimpissinger L Kellner W Brannath K Krepler U Stolba C Mihalics