Small Gauge Vitrectomy: Anesthesia, Incision Technique and Cannula Removal
Sub-tenon anesthesia can be performed in order to perform small-gauge vitrectomy with less invasive modality than peribulbar needle injection, and is more efficient than topical anesthesia as it allows akinesia as well.
Hypotony is a complication related to postoperative wound leakage, so incision construction is critical.
Oblique parallel incisions achieve airtight sclerotomies in 25- and in 23-gauge vitrectomy.
Shaving the cannula from the inside and removing the cannulas with low IOP pressure using a fiberlight are mandatory to avoid vitreous incarcerations.
Endophthalmitis risk is greater in 25-gauge vitrectomy than in 25-gauge, and can be avoided by performing careful patient preparation, by modifying incision construction, and by avoiding vitreous incarceration in the sclerotomies.
KeywordsMacular Hole Incision Technique Vitreous Chamber Scleral Surface Ciliochoroidal Detachment
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