Ophthalmic surgery
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This single-injection, peribulbar technique provides a painless and efficacious block without the need for intravenous supplements. One hundred consecutive patients achieved lid akinesia and complete akinesia and anesthesia of the globe by the transconjunctival route. Only 1% needed a supplemental injection, and complications were minor and infrequent.
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A combined technique of topical anesthesia (TA) and subconjunctival anesthesia (SCA) was used in 73 consecutive patients undergoing scleral tunnel phacoemulsification cataract surgery. Medical records were evaluated preoperatively, intraoperative, and postoperatively. A patient questionnaire was used to obtain subjective intraoperative and postoperative information. ⋯ No patients required additional retrobulbar or peribulbar anesthesia. The most frequent postoperative problems were pain, a need for patching, and headache. The combined TA and SCA technique appeared safe, medically acceptable, and cost-effective.
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We observed four cases of chemosis associated with otherwise uneventful four-lid blepharoplasty. These patients experienced postoperative conjunctival chemosis (without associated globe injection), varied types of congestion, subconjunctival hemorrhage, retrobulbar hematoma, or corneal involvement. ⋯ Regardless of the treatment, the chemosis resolved by 5 months, without permanent complication. Probable causes were blockage of orbital or eyelid lymphatics and excessive cautery during surgery.
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A simple method for inflicting corneal foreign body injuries on bovine eyes is described and illustrated. The subsequent use of these eyes for teaching corneal and rust-ring removal is demonstrated. This method is suitable for instruction of large numbers of students and could be included in an undergraduate curriculum.