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23-gauge versus 20-gauge system for pars plana vitrectomy: a prospective randomised clinical trial
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  • Published on:
    Authors' Response
    • Susanne Binder, Professor and Head of the Department of Ophthalmology
    • Other Contributors:
      • Barbara Wimpissinger, Lukas Kellner, Werner Brannath, Katharina Krepler, Ulrike Stolba, Christian Mihalics.

    Dear editor,

    We would like to give a response to the letter of Dr. Anshuman Sinha concerning our article "23 Gauge versus 20 Gauge System for Pars Plana Vitrectomy: A Prospective Randomized Clinical Trial".

    For analysis of postoperative pain we used a simplified verbal rating scale (ranging from 0, meaning no pain, to 3, meaning severe pain). The standardized verbal rating scale reaches from 0 (no pain) to...

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    Conflict of Interest:
    None declared.
  • Published on:
    Comments on 23-gauge versus 20-gauge system for pars plana vitrectomy
    • Anshuman Sinha, Fellow - Retina & Vitreous
    • Other Contributors:
      • Ritesh Narula, Raja Narayanan

    Dear editor,

    We read with interest the paper by Wimpissinger et al comparing sutureless 23-gauge system to a standard 20-gauge system for pars plana vitrectomy, in a randomized 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...

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    Conflict of Interest:
    None declared.