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- Published on: 2 March 2009
- Published on: 12 December 2008
- Published on: 2 March 2009Authors' ResponseShow More
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...
Conflict of Interest:
None declared. - Published on: 12 December 2008Comments on 23-gauge versus 20-gauge system for pars plana vitrectomyShow More
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...
Conflict of Interest:
None declared.