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Published on: September 13, 2016
Three-step incision for 23-gauge vitrectomy reduces postoperative hypotony compared with an oblique incision
Masataka Shimozono1, Akio Oishi, Hiroki Kimakura
1Department of Ophthalmology, Kobe City Medical Center General Hospital, Institute of Biomedical Research and Innovation Hospital, Kobe, Japan.
Background And Objective:
to assess the efficacy and safety of the newly developed three-step incision method of performing 23-gauge vitrectomy.
Patients And Methods:
a retrospective comparative study in which a consecutive series of 45 eyes that underwent the three-step incision type of 23-gauge vitrectomy was compared with a series of 27 consecutive eyes that had previously undergone the oblique incision type of 23-gauge vitrectomy.
Results:
no cases of postoperative hypotony (< 6 mm Hg) were noted in the three-step group compared with 3 cases (11%) in the oblique group (P = .05). The three-step incision resulted in a significantly higher mean intraocular pressure than the conventional incision on postoperative day 1 (14.1 ± 6.7 mm Hg vs 10.9 ± 3.7 mm Hg; P = .05), but there was no significant difference after 1 week.
Conclusion:
the three-step incision for performing 23-gauge vitrectomy effectively prevented postoperative hypotony and demonstrated a safety profile comparable to that of the oblique incision.
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