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Outcomes of 23- and 25-gauge transconjunctival sutureless vitrectomies for idiopathic macular holes
  1. S Kusuhara1,
  2. S Ooto1,
  3. D Kimura1,
  4. K Itoi1,
  5. H Mukuno1,
  6. N Miyamoto1,
  7. M Akimoto1,
  8. S Kuriyama2,
  9. H Takagi1
  1. 1
    Department of Ophthalmology, Hyogo Prefectural Amagasaki Hospital, Amagasaki, Hyogo, Japan
  2. 2
    Department of Ophthalmology, Otsu Red-Cross Hospital, Otsu, Shiga, Japan
  1. Dr H Takagi, Department of Ophthalmology, Hyogo Prefectural Amagasaki Hospital, 1-1-1 Higashi-Daimotsu-cho, Amagasaki, Hyogo 660-0828, Japan; takagi{at}


Background/aims: To assess the outcomes of 23-gauge sutureless transconjunctival vitrectomies (TSV), as compared with 25-gauge TSV in macular hole surgeries.

Methods: A retrospective, consecutive, interventional case series of 47 eyes with idiopathic macular holes treated by 23- or 25-gauge TSV were analysed.

Results: The operative time was 37.2 (SD 8.9) min with 23-gauge TSV and 34.2 (8.7) min with 25-gauge TSV (p = 0.388). The anatomical success rate was 96% with 23-gauge TSV and 92% with 25-gauge TSV (p>0.999). The logarithm of the minimum angle of resolution of best-corrected visual acuity (BCVA) at the sixth postoperative month was 0.19 (0.16) with 23-gauge TSV and 0.19 (0.25) with 25-gauge TSV (p = 0.521). Postoperative improvement in BCVA was comparable between the two TSVs. IOP on postoperative day 1 was lower with 25-gauge TSV (12.3 (4.9) mm Hg) than with 23-gauge TSV (17.4 (5.8) mm Hg) (p = 0.036). Complications included retinal break, intraoperative bleeding and slippage of the infusion cannula with 23-gauge TSV, while retinal detachment and postoperative hypotony occurred in the 25-gauge TSV group (p = 0.570).

Conclusion: 23-gauge TSV appears to be as safe and effective as 25-gauge TSV in macular hole surgery.

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  • The first two authors contributed equally.

  • Competing interests: None.

  • Ethics approval: This study was approved by the Institutional Review Board and conducted in accordance with the tenet of Declaration of Helsinki.

  • Patient consent: Obtained.