Abstract
Background: To study the safety and efficacy provided by a minimal and localized anesthesia in cataract surgery. Methods: Randomized controlled trial. A total of 100 patients undergoing cataract surgery were randomly divided into two groups of 50, which respecitvely received conventional topical anesthesia consisting of preservative-free Oxibuprocaine hydrochloride 0.4% drops or minimal localized anesthesia, administered with a cotton bud soaked in preservative-free Oxibuprocaine hydrochloride 0.4% applied to clear cornea on the access sites for 10 s immediately before surgery. The mean outcome measures were intraoperative pain and the incidence of postoperative ocular discomfort. Results: All patients tolerated well the procedure, giving patin scores between 1–3. Fifteen patients (30%) of group 1 and ten of group 2 (25%) required supplemental anesthesia. No intraoperative complications were recorded. No eyes had epithelial defects at the end of the surgery or at postoperative check-ups. Conclusions: Minimal anesthesia in cataract surgery resulted quick, safe and non-invasive.
Highlights
Over the years, many less invasive techniques have been developed to perform anesthesia for cataract surgery
Since multiple eye drops are used for analgesia, these topical anesthetics might have toxic effects on the corneal epithelium
The purpose of our study is to evaluate the efficacy and safety of a minimal localized anesthesia administered with a cotton bud soaked in preservative-free Oxybuprocaine hydrochloride 0.4% applied to clear cornea at incision sites for 10 s immediately before surgery
Summary
Many less invasive techniques have been developed to perform anesthesia for cataract surgery. Since multiple eye drops are used for analgesia, these topical anesthetics might have toxic effects on the corneal epithelium. This can reduce the visibility for the surgeon, lead to discomfort in thepostoperative period, reduce tearing and rarely cause severe keratopathy [5,6]. A total of 100 patients undergoing cataract surgery were randomly divided into two groups of 50, which respecitvely received conventional topical anesthesia consisting of preservative-free Oxibuprocaine hydrochloride 0.4% drops or minimal localized anesthesia, administered with a cotton bud soaked in preservative-free Oxibuprocaine hydrochloride 0.4% applied to clear cornea on the access sites for 10 s immediately before surgery. Conclusions: Minimal anesthesia in cataract surgery resulted quick, safe and non-invasive
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