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25-gauge scleral tunnel transconjunctival vitrectomy
Hiroyuki Shimada1, Hiroyuki Nakashizuka, Ryuzaburo Mori
1Department of Ophthalmology, School of Medicine, Nihon University, Kanda, Chiyodaku, Tokyo, Japan. sshimada@olive.ocn.ne.jp
American Journal of Ophthalmology
|October 24, 2006
Summary
Scleral tunnels significantly reduce intraocular fluid leakage during 25-gauge (25G) transconjunctival vitrectomy. This technique is effective in minimizing wound leakage, even with peripheral vitreous removal.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Retinal Surgery
Background:
- Minimizing intraocular fluid leakage is crucial in vitreoretinal surgery.
- Standard 25-gauge (25G) transconjunctival vitrectomy may be associated with wound leakage.
- Scleral tunnel creation is a technique to enhance wound closure.
Purpose of the Study:
- To compare the intraocular fluid leakage rate between 25-gauge (25G) transconjunctival vitrectomy with scleral tunnels and standard 25G transconjunctival vitrectomy.
Main Methods:
- A retrospective, single-center, interventional case series.
- Compared 542 eyes undergoing standard 25G vitrectomy with 337 eyes undergoing 25G vitrectomy using scleral tunnels.
- Scleral tunnels were created by oblique trocar insertion.
Main Results:
- Intraocular fluid leakage was significantly lower with scleral tunnels (1%) compared to standard vitrectomy (9%) (P < .0001).
- Wound leakage was significantly reduced with scleral tunnels, both with and without air exchange (P = .0258 and P = .0007, respectively).
Conclusions:
- The use of scleral tunnels in 25G transconjunctival vitrectomy effectively reduces the frequency of wound leakage.
- This technique is beneficial even when peripheral vitreous is removed during the procedure.
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