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In this study the investigators will be comparing two different types of anesthetic, a numbing eye drop and a numbing gel, to test if they are equally effective or if one has a better outcome in terms of the level of comfort you experience one hour and one day after your surgery. The two medications are commonly used and appear to be equally effective for other types of eye surgery, such as cataract surgery. This study will show if one type of anesthesia is preferred over another by patients getting LASIK. Before your LASIK procedure, you will be given a short questionnaire to determine the baseline comfort of your eyes. In the operating room, one type of anesthetic will be put in one eye, and the other medication will be put in the other eye. Which anesthetic you get in each eye will be chosen in a random way (similar to flipping a coin). After your LASIK surgery, the investigators will ask you if you felt more comfort in your right eye, your left eye, or if they were equal, and the investigators will ask you the same survey questions that were asked prior to your LASIK to get more details about your experience.
Outcome measures involve comparing the right eye and left eye for severity of 12 different symptoms, that are recorded in severity on a 1-5 scale. A score of 1 means no symptoms and 5 means severe. The 12 measurements include sharp pain, dull ache, pain during movement, stinging sensation, itching, light sensitivity, watery eyes, dry eyes, sandy sensation, pressure sensation, decreased vision, and blurry vision.
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Investigator, Outcomes Assessor), Primary Purpose: Supportive Care
2% lidocaine gel, 0.5% tetracaine drops
Bascom Palmer Eye Institute
University of Miami
Published on BioPortfolio: 2014-08-27T04:00:28-0400
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The administration of therapeutic agents drop by drop, as eye drops, ear drops, or nose drops. It is also administered into a body space or cavity through a catheter. It differs from irrigation in that the irrigate is removed within minutes, but the instillate is left in place.
A colorless liquid with a sharp burning taste and slight odor. It is used as a local anesthetic and to reduce pain associated with LIDOCAINE injection. Also, it is used in the manufacture of other benzyl compounds, as a pharmaceutic aid, and in perfumery and flavoring.
A potent local anesthetic of the ester type used for surface and spinal anesthesia.
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Pain in the facial region including orofacial pain and craniofacial pain. Associated conditions include local inflammatory and neoplastic disorders and neuralgic syndromes involving the trigeminal, facial, and glossopharyngeal nerves. Conditions which feature recurrent or persistent facial pain as the primary manifestation of disease are referred to as FACIAL PAIN SYNDROMES.
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