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Study: 23- and 25-gauge vitrectomy similarly effective for macular hole surgery

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For macular hole surgery, 23-gauge sutureless transconjunctival vitrectomy works as well as vitrectomy using a 25-gauge device, a retrospective study suggests.

Sentaro Kusuhara, MD, and colleagues compared outcomes after performing either 23- or 25-gauge sutureless transconjunctival vitrectomies on 47 consecutive eyes with idiopathic macular holes.

Operating times were relatively similar using the two platforms, averaging 37.2 minutes for 23-gauge vitrectomy and 34.2 minutes for 25-gauge vitrectomy, the authors noted.

Anatomical success rates were also similar, averaging 96% after 23-gauge vitrectomy and 92% after 25-gauge vitrectomy.

At 6 months postop, logMAR best corrected visual acuity had improved to 0.19 in both groups.

However, IOP at 1 day postop was lower after 25-gauge vitrectomy (12.3 mm Hg) than after 23-gauge vitrectomy (17.4 mm Hg) (P = .036).

Among patients who received 23-gauge vitrectomy, complications included retinal break, intraoperative bleeding and slippage of the infusion cannula; complications among the 25-gauge group included retinal detachment and postoperative hypotony, according to the study, published in the September issue of British Journal of Ophthalmology.