KetorolacKetorolac TromethamineTolmetinTromethamineAnti-Inflammatory Agents, Non-SteroidalPain, PostoperativeDiclofenacCyclooxygenase InhibitorsKetoprofenAnalgesicsTramadolAnalgesia, Patient-ControlledAnalgesics, OpioidPain MeasurementAnalgesics, Non-NarcoticBromobenzenesMorphineDouble-Blind MethodAdministration, TopicalMydriasisMeperidineOphthalmic SolutionsVestibular Evoked Myogenic Potentials