Author(s): Lee JJ, Moster MR, Henderer JD, Membreno JH
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Abstract PURPOSE: To evaluate pupil dilation from intracameral injection of nonpreserved 1\% lidocaine. DESIGN: Observational case series of 25 consecutive phakic trabeculectomies. METHOD: Patients were evaluated in the operating room setting and given one drop of topical tetracaine preoperatively. Nonpreserved 1\% lidocaine (0.1 cc) was injected intracameraly into the anterior chamber through a paracentesis site at the corneal limbus. Pupil diameter was measured after instillation of topical tetracaine, before injection of intracameral lidocaine. Postinjection measurements were made at 1, 3, and 5 minutes. RESULTS: The mean male pupil diameter was significantly greater than female dilation at every time point. The mean blue iris diameter was greater than brown at 1 and 3 minutes, but there was no difference at 5 minutes or more. There was no racial difference in the pupil dilation response to intracameral lidocaine. CONCLUSIONS: Nonpreserved intracameral 1\% lidocaine produces immediate pupil dilation in previously undilated phakic patients during trabeculectomy surgery.
This article was published in Am J Ophthalmol
and referenced in Journal of Clinical & Experimental Ophthalmology