Vitreous incarceration in sutured vs non-sutured sclerotomies after 25-gauge macular surgery

Gian Marco Tosi*, Alex Malandrini, Tommaso Bacci, Matteo Posarelli, Chiara Oddone, Gianni Virgili

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Objectives: To study the patterns of vitreous incarceration in sutured vs non-sutured sclerotomies in patients subjected to 25-gauge macular surgery. Methods: A prospective study of 135 eyes affected by epiretinal membrane or macular hole. Vitreal disposition was evaluated via ultrasound biomicroscopy (UBM) at the sclerotomy sites between 30 and 40 days after surgery, once the tamponade had completely disappeared. Results: In total, 349 sclerotomies (86.2%) of 99 patients were non-sutured while 56 sclerotomies (13.8%) of 36 patients were sutured at the end of the surgical procedure. Among the 36 patients with sutured sclerotomies, 15 out of 36 (41.6%) had at least two sclerotomies sutured. All the sclerotomy sites were evaluated (405 sclerotomies). Sclerotomy suture was significantly associated with a less aggressive pattern of vitreal incarceration (OR: 0.16, 95% CI: 0.07–0.35, p < 0.001). Compared to preoperative values, day 1 post operative IOP was not significantly different in patients with sutured sclerotomies, while patients with non-sutured sclerotomies had a significantly lower day 1 post operative IOP. Conclusions: In 25-gauge macular surgery, UBM evaluation documented a higher rate of postoperative vitreous incarceration in the non-sutured sclerotomies, confirming the previously postulated role of the residual vitreous, left at the end of the surgery, in closing the sclerotomy site.

Original languageEnglish
JournalEye (Basingstoke)
Publication statusPublished - 27 Oct 2020
Externally publishedYes

Bibliographical note

Funding Information:
Funding The study was partially supported by the I.Ri.Fo.R Onlus (Institute for Research, Training and Rehabilitation), Italian Union of Blind and Visually Impaired People.

Publisher Copyright:
© 2020, The Author(s).

Copyright 2020 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems


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