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Am J Ophthalmol. 2005 Jun;139(6):1130-3.

A new non-trocar system for 25-gauge transconjunctival pars plana vitrectomy.

Author information

1
Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyou-ku, Kyoto 602-0841, Japan. mtei@ophth.kpu-m.ac.jp

Abstract

PURPOSE:

To introduce a new non-trocar system for 25-gauge transconjunctival pars plana vitrectomy (PPV).

DESIGN:

Study of a new surgical instrument.

METHODS:

This new non-trocar system for 25-gauge transconjunctival PPV consists of a contact lens ring featuring four projections containing 1.0-mm diameter holes located 3.0 mm from the ring edge, a wedge-shaped 25-gauge infusion cannula, and two plugs.

RESULTS:

The ring is fixed with 7-0 silk sutures at the 3- and 9-o'clock positions on the limbus. Using the 25-gauge needle, three conjunctival and scleral incisions (n = 3) are made at the projection holes located inferotemporally, superonasally, and superotemporally. No intra- or postoperative complications were encountered in 14 patients treated by this non-trocar 25-gauge transconjunctival PPV.

CONCLUSION:

Using the system introduced here, 25-gauge transconjunctival PPV can be performed without suturing sclerotomies and without intra- or postoperative complications.

PMID:
15953458
DOI:
10.1016/j.ajo.2004.12.010
[Indexed for MEDLINE]

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