Journal of cataract and refractive surgery
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J Cataract Refract Surg · Nov 1997
Randomized Controlled Trial Comparative Study Clinical TrialTopical anesthesia with pH-adjusted versus standard lidocaine 4% for clear corneal cataract surgery.
To evaluate and compare the efficacy of a sodium-bicarbonate-adjusted preparation of lidocaine 4% (pH = 7.2) and standard lidocaine (pH = 5.2) for topical anesthesia in clear corneal cataract surgery. ⋯ In this study, pH-adjusted lidocaine 4% was a safe, effective topical anesthetic for clear corneal surgery and had minimal local and systemic toxicity. Administration of pH-adjusted lidocaine 4% resulted in significantly higher aqueous humor lidocaine concentrations than administration of standard lidocaine 4%.
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J Cataract Refract Surg · Nov 1997
Randomized Controlled Trial Comparative Study Clinical TrialShort-term effects of flurbiprofen and diclofenac on refractive outcome and corneal haze after photorefractive keratectomy.
To evaluate the short-term effects of topical nonsteroidal anti-inflammatory drugs (NSAIDs) on refractive outcome and corneal haze after excimer laser photorefractive keratectomy (PRK) according to the degree of myopia and to compare the results with those of topical steroids. ⋯ Topical NSAIDs were less effective than topical steroids in reducing myopic regression and haze after PRK, especially in highly myopic eyes.
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J Cataract Refract Surg · Jul 1997
Case ReportsTransient no light perception visual acuity after intracameral lidocaine injection.
The use of intracameral lidocaine for augmenting analgesia during intraocular surgery is becoming increasingly popular. We report a case of complete visual loss after the use of intracameral lidocaine to repair a traumatic corneal graft dehiscence. Full visual recovery returned several hours after surgery, suggesting this medication's relative lack of retinal toxicity.
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J Cataract Refract Surg · Jun 1997
Randomized Controlled Trial Comparative Study Clinical TrialSedation with ketamine during cataract surgery.
To evaluate the cardiovascular and ocular effects of a low-dose sedation-analgesia regimen in cataract surgery. ⋯ In a regimen with other drugs, ketamine did not influence IOP and enabled comfortable completion of anesthesia and surgery.
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Powdered and powder-free gloves were compared during ophthalmic surgery. It was found that powder may reappear on well-rinsed gloves by the end of intraocular surgery and be implanted inadvertently into the eye or in the stromal interface during laser in situ keratomileusis. Powder-free gloves, therefore, make surgery significantly safer.